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[ "Hi ! I don't remember exactly how it was done, but maybe you have to embed `f\"{title}<sep>{text}\"` ?\r\n\r\nUsing a HF tokenizer it corresponds to doing\r\n```python\r\ntokenized = tokenizer(titles, texts)\r\n```" ]

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[ "Hi @lhoestq or other maintainers, this is ready for review, could you please take a look?", "The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_5807). All of your documentation changes will be reflected on that endpoint.", "Per the discussion in #5798, will implement with `joblibspark` instead." ]

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[ "Implementing this makes sense (e.g., `tensorflow_datasets`' imagefolder returns image filenames). Also, in Datasets 3.0, we plan only to store the bytes of an image/audio, not its path, so this feature would be useful when the path info is still needed.", "Hey @mariosasko, Can I work on this issue, this one seems interesting to implement. I have contributed to jupyterlab recently, and would love to contribute here as well. ", "@tsabbir96 if you are planning to start working on this, you can take on this issue by writing a comment with only the keyword: #self-assign", "#self-assign", "@albertvillanova thank you for letting me contribute here. \r\n@albertvillanova @mariosasko As I am totally new to this repo, could you tell me something more about this issue or perhaps give me some idea on how I can proceed with it? Thanks!", "Hello there, is this issue resolved? @tsabbir96 are you still working on it? Otherwise I would love to give it a try", "@EduardoPach This issue is still relevant, so feel free to work on it.", "Hey @mariosasko, I've taken the time to take a look at how we load the datasets usually. My main question now is about the final solution.\r\n\r\nSo the idea is that whenever we load the datasets we also add a new column in the _generate_tables() method from the builders called filename (or file_name) that should be related files contained in each split, right?\r\n\r\nDo you have any suggestions of where I could add that? " ]

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[ "I can work on this. The link to the tutorial seems to be broken though @polinaeterna. ", "@isunitha98selvan would be great, thank you! which link are you talking about? I think it should work: https://huggingface.co/docs/datasets/create_dataset" ]

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[ "The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_5804). All of your documentation changes will be reflected on that endpoint.", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006448 / 0.011353 (-0.004905) | 0.004440 / 0.011008 (-0.006568) | 0.097837 / 0.038508 (0.059328) | 0.027754 / 0.023109 (0.004645) | 0.306462 / 0.275898 (0.030564) | 0.332454 / 0.323480 (0.008975) | 0.004984 / 0.007986 (-0.003001) | 0.004703 / 0.004328 (0.000375) | 0.075213 / 0.004250 (0.070962) | 0.036524 / 0.037052 (-0.000529) | 0.310149 / 0.258489 (0.051659) | 0.346392 / 0.293841 (0.052552) | 0.031012 / 0.128546 (-0.097534) | 0.011598 / 0.075646 (-0.064049) | 0.323066 / 0.419271 (-0.096206) | 0.042945 / 0.043533 (-0.000588) | 0.302286 / 0.255139 (0.047147) | 0.327813 / 0.283200 (0.044614) | 0.092540 / 0.141683 (-0.049143) | 1.532893 / 1.452155 (0.080739) | 1.556676 / 1.492716 (0.063960) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.195126 / 0.018006 (0.177120) | 0.399623 / 0.000490 (0.399133) | 0.003176 / 0.000200 (0.002976) | 0.000068 / 0.000054 (0.000014) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023612 / 0.037411 (-0.013799) | 0.097794 / 0.014526 (0.083268) | 0.104665 / 0.176557 (-0.071891) | 0.167145 / 0.737135 (-0.569990) | 0.108769 / 0.296338 (-0.187570) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.437818 / 0.215209 (0.222608) | 4.354896 / 2.077655 (2.277242) | 2.092832 / 1.504120 (0.588712) | 1.957630 / 1.541195 (0.416435) | 2.033135 / 1.468490 (0.564645) | 0.702316 / 4.584777 (-3.882461) | 3.448035 / 3.745712 (-0.297678) | 1.906762 / 5.269862 (-3.363100) | 1.253274 / 4.565676 (-3.312402) | 0.082486 / 0.424275 (-0.341789) | 0.012442 / 0.007607 (0.004835) | 0.532096 / 0.226044 (0.306052) | 5.366580 / 2.268929 (3.097652) | 2.441904 / 55.444624 (-53.002720) | 2.112116 / 6.876477 (-4.764361) | 2.185471 / 2.142072 (0.043398) | 0.797905 / 4.805227 (-4.007322) | 0.149811 / 6.500664 (-6.350853) | 0.066507 / 0.075469 (-0.008962) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.206300 / 1.841788 (-0.635487) | 13.620851 / 8.074308 (5.546543) | 14.190666 / 10.191392 (3.999274) | 0.142343 / 0.680424 (-0.538081) | 0.016867 / 0.534201 (-0.517334) | 0.381557 / 0.579283 (-0.197726) | 0.373935 / 0.434364 (-0.060429) | 0.437856 / 0.540337 (-0.102481) | 0.525235 / 1.386936 (-0.861701) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006598 / 0.011353 (-0.004755) | 0.004487 / 0.011008 (-0.006522) | 0.077582 / 0.038508 (0.039073) | 0.028008 / 0.023109 (0.004899) | 0.341602 / 0.275898 (0.065704) | 0.377105 / 0.323480 (0.053625) | 0.004999 / 0.007986 (-0.002986) | 0.004791 / 0.004328 (0.000462) | 0.076418 / 0.004250 (0.072167) | 0.038347 / 0.037052 (0.001295) | 0.343196 / 0.258489 (0.084707) | 0.382459 / 0.293841 (0.088618) | 0.030597 / 0.128546 (-0.097950) | 0.011579 / 0.075646 (-0.064067) | 0.085876 / 0.419271 (-0.333396) | 0.043241 / 0.043533 (-0.000292) | 0.343754 / 0.255139 (0.088615) | 0.380689 / 0.283200 (0.097489) | 0.096015 / 0.141683 (-0.045668) | 1.464419 / 1.452155 (0.012264) | 1.574010 / 1.492716 (0.081294) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.156433 / 0.018006 (0.138427) | 0.403179 / 0.000490 (0.402690) | 0.002415 / 0.000200 (0.002215) | 0.000082 / 0.000054 (0.000027) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.024946 / 0.037411 (-0.012465) | 0.100568 / 0.014526 (0.086042) | 0.106440 / 0.176557 (-0.070117) | 0.158457 / 0.737135 (-0.578678) | 0.110774 / 0.296338 (-0.185564) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.434734 / 0.215209 (0.219525) | 4.343874 / 2.077655 (2.266220) | 2.059759 / 1.504120 (0.555639) | 1.855124 / 1.541195 (0.313930) | 1.908567 / 1.468490 (0.440077) | 0.695283 / 4.584777 (-3.889494) | 3.347724 / 3.745712 (-0.397988) | 2.979498 / 5.269862 (-2.290364) | 1.532040 / 4.565676 (-3.033636) | 0.083021 / 0.424275 (-0.341254) | 0.012522 / 0.007607 (0.004915) | 0.540934 / 0.226044 (0.314890) | 5.385690 / 2.268929 (3.116762) | 2.507409 / 55.444624 (-52.937216) | 2.160537 / 6.876477 (-4.715939) | 2.269195 / 2.142072 (0.127123) | 0.804718 / 4.805227 (-4.000509) | 0.152432 / 6.500664 (-6.348232) | 0.068783 / 0.075469 (-0.006686) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.294698 / 1.841788 (-0.547090) | 14.152792 / 8.074308 (6.078484) | 14.233132 / 10.191392 (4.041740) | 0.143655 / 0.680424 (-0.536768) | 0.016844 / 0.534201 (-0.517357) | 0.380246 / 0.579283 (-0.199037) | 0.381730 / 0.434364 (-0.052633) | 0.456838 / 0.540337 (-0.083499) | 0.543677 / 1.386936 (-0.843259) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#b28d5610887f2e107765f5f1557679184db08214 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008586 / 0.011353 (-0.002767) | 0.005886 / 0.011008 (-0.005122) | 0.114522 / 0.038508 (0.076014) | 0.040966 / 0.023109 (0.017857) | 0.366655 / 0.275898 (0.090757) | 0.408765 / 0.323480 (0.085285) | 0.006822 / 0.007986 (-0.001164) | 0.004508 / 0.004328 (0.000180) | 0.084715 / 0.004250 (0.080465) | 0.054007 / 0.037052 (0.016954) | 0.380500 / 0.258489 (0.122011) | 0.410377 / 0.293841 (0.116536) | 0.041040 / 0.128546 (-0.087507) | 0.013940 / 0.075646 (-0.061707) | 0.398456 / 0.419271 (-0.020816) | 0.059315 / 0.043533 (0.015782) | 0.353640 / 0.255139 (0.098501) | 0.388682 / 0.283200 (0.105482) | 0.121744 / 0.141683 (-0.019939) | 1.729306 / 1.452155 (0.277151) | 1.824768 / 1.492716 (0.332052) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.228806 / 0.018006 (0.210800) | 0.492790 / 0.000490 (0.492300) | 0.010815 / 0.000200 (0.010615) | 0.000372 / 0.000054 (0.000318) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031750 / 0.037411 (-0.005662) | 0.127160 / 0.014526 (0.112635) | 0.136717 / 0.176557 (-0.039839) | 0.205590 / 0.737135 (-0.531545) | 0.142596 / 0.296338 (-0.153742) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.486419 / 0.215209 (0.271210) | 4.858572 / 2.077655 (2.780918) | 2.173867 / 1.504120 (0.669747) | 1.934619 / 1.541195 (0.393424) | 2.104185 / 1.468490 (0.635695) | 0.837913 / 4.584777 (-3.746864) | 4.552192 / 3.745712 (0.806480) | 2.565040 / 5.269862 (-2.704822) | 1.808499 / 4.565676 (-2.757178) | 0.103283 / 0.424275 (-0.320993) | 0.015040 / 0.007607 (0.007433) | 0.602325 / 0.226044 (0.376281) | 6.038655 / 2.268929 (3.769727) | 2.759789 / 55.444624 (-52.684835) | 2.330990 / 6.876477 (-4.545487) | 2.404111 / 2.142072 (0.262038) | 1.011637 / 4.805227 (-3.793590) | 0.202142 / 6.500664 (-6.298522) | 0.079496 / 0.075469 (0.004026) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.429543 / 1.841788 (-0.412245) | 18.052409 / 8.074308 (9.978101) | 16.989154 / 10.191392 (6.797762) | 0.208981 / 0.680424 (-0.471443) | 0.020490 / 0.534201 (-0.513711) | 0.502746 / 0.579283 (-0.076537) | 0.491769 / 0.434364 (0.057405) | 0.581970 / 0.540337 (0.041632) | 0.695816 / 1.386936 (-0.691120) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008449 / 0.011353 (-0.002904) | 0.006633 / 0.011008 (-0.004375) | 0.088638 / 0.038508 (0.050130) | 0.040013 / 0.023109 (0.016904) | 0.413108 / 0.275898 (0.137210) | 0.446310 / 0.323480 (0.122830) | 0.006515 / 0.007986 (-0.001471) | 0.006223 / 0.004328 (0.001894) | 0.089823 / 0.004250 (0.085573) | 0.052029 / 0.037052 (0.014977) | 0.407263 / 0.258489 (0.148774) | 0.449416 / 0.293841 (0.155576) | 0.041810 / 0.128546 (-0.086736) | 0.014604 / 0.075646 (-0.061042) | 0.103728 / 0.419271 (-0.315543) | 0.058212 / 0.043533 (0.014679) | 0.408936 / 0.255139 (0.153797) | 0.436727 / 0.283200 (0.153528) | 0.124344 / 0.141683 (-0.017339) | 1.752112 / 1.452155 (0.299957) | 1.859104 / 1.492716 (0.366387) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.231172 / 0.018006 (0.213166) | 0.502974 / 0.000490 (0.502485) | 0.005586 / 0.000200 (0.005386) | 0.000137 / 0.000054 (0.000082) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.034097 / 0.037411 (-0.003314) | 0.133780 / 0.014526 (0.119254) | 0.142321 / 0.176557 (-0.034236) | 0.199807 / 0.737135 (-0.537329) | 0.150073 / 0.296338 (-0.146266) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.515658 / 0.215209 (0.300449) | 5.129783 / 2.077655 (3.052129) | 2.534767 / 1.504120 (1.030648) | 2.352468 / 1.541195 (0.811274) | 2.430708 / 1.468490 (0.962218) | 0.850087 / 4.584777 (-3.734690) | 4.529622 / 3.745712 (0.783910) | 2.451986 / 5.269862 (-2.817876) | 1.569568 / 4.565676 (-2.996109) | 0.102907 / 0.424275 (-0.321368) | 0.014420 / 0.007607 (0.006813) | 0.635124 / 0.226044 (0.409080) | 6.260496 / 2.268929 (3.991568) | 3.094984 / 55.444624 (-52.349640) | 2.780629 / 6.876477 (-4.095847) | 2.947620 / 2.142072 (0.805548) | 1.002397 / 4.805227 (-3.802830) | 0.200502 / 6.500664 (-6.300162) | 0.076577 / 0.075469 (0.001107) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.505958 / 1.841788 (-0.335829) | 18.364986 / 8.074308 (10.290678) | 16.707214 / 10.191392 (6.515822) | 0.210976 / 0.680424 (-0.469447) | 0.022077 / 0.534201 (-0.512124) | 0.516174 / 0.579283 (-0.063109) | 0.502469 / 0.434364 (0.068105) | 0.626790 / 0.540337 (0.086453) | 0.747230 / 1.386936 (-0.639706) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#bc5fef5b6d91f009e4101684adcb374df2c170f6 \"CML watermark\")\n" ]

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[]

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[ "The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_5803). All of your documentation changes will be reflected on that endpoint.", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008303 / 0.011353 (-0.003050) | 0.005681 / 0.011008 (-0.005327) | 0.111830 / 0.038508 (0.073322) | 0.039222 / 0.023109 (0.016112) | 0.336773 / 0.275898 (0.060875) | 0.376673 / 0.323480 (0.053193) | 0.006756 / 0.007986 (-0.001230) | 0.006078 / 0.004328 (0.001749) | 0.083552 / 0.004250 (0.079301) | 0.054430 / 0.037052 (0.017377) | 0.337310 / 0.258489 (0.078821) | 0.386138 / 0.293841 (0.092297) | 0.040068 / 0.128546 (-0.088478) | 0.013895 / 0.075646 (-0.061751) | 0.384174 / 0.419271 (-0.035097) | 0.058244 / 0.043533 (0.014711) | 0.342410 / 0.255139 (0.087271) | 0.362417 / 0.283200 (0.079217) | 0.123470 / 0.141683 (-0.018213) | 1.662938 / 1.452155 (0.210784) | 1.786488 / 1.492716 (0.293771) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.232629 / 0.018006 (0.214622) | 0.478252 / 0.000490 (0.477762) | 0.008519 / 0.000200 (0.008319) | 0.000111 / 0.000054 (0.000057) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031222 / 0.037411 (-0.006190) | 0.125875 / 0.014526 (0.111350) | 0.138995 / 0.176557 (-0.037562) | 0.213073 / 0.737135 (-0.524062) | 0.141848 / 0.296338 (-0.154490) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.463648 / 0.215209 (0.248439) | 4.582969 / 2.077655 (2.505314) | 2.104622 / 1.504120 (0.600502) | 1.887697 / 1.541195 (0.346502) | 1.946096 / 1.468490 (0.477606) | 0.809008 / 4.584777 (-3.775769) | 4.527871 / 3.745712 (0.782159) | 4.862721 / 5.269862 (-0.407141) | 2.423257 / 4.565676 (-2.142419) | 0.101080 / 0.424275 (-0.323196) | 0.014767 / 0.007607 (0.007160) | 0.574471 / 0.226044 (0.348427) | 5.746445 / 2.268929 (3.477516) | 2.682584 / 55.444624 (-52.762040) | 2.320113 / 6.876477 (-4.556364) | 2.474530 / 2.142072 (0.332458) | 0.992979 / 4.805227 (-3.812249) | 0.200812 / 6.500664 (-6.299852) | 0.076291 / 0.075469 (0.000822) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.395533 / 1.841788 (-0.446254) | 17.418803 / 8.074308 (9.344495) | 16.584875 / 10.191392 (6.393483) | 0.167739 / 0.680424 (-0.512685) | 0.020923 / 0.534201 (-0.513278) | 0.500788 / 0.579283 (-0.078496) | 0.510270 / 0.434364 (0.075906) | 0.589608 / 0.540337 (0.049270) | 0.694233 / 1.386936 (-0.692703) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008440 / 0.011353 (-0.002913) | 0.005871 / 0.011008 (-0.005137) | 0.085805 / 0.038508 (0.047297) | 0.039324 / 0.023109 (0.016215) | 0.400587 / 0.275898 (0.124689) | 0.431729 / 0.323480 (0.108249) | 0.006557 / 0.007986 (-0.001429) | 0.005778 / 0.004328 (0.001450) | 0.084394 / 0.004250 (0.080144) | 0.055274 / 0.037052 (0.018222) | 0.410568 / 0.258489 (0.152079) | 0.439952 / 0.293841 (0.146111) | 0.040335 / 0.128546 (-0.088211) | 0.013968 / 0.075646 (-0.061679) | 0.098765 / 0.419271 (-0.320507) | 0.055897 / 0.043533 (0.012364) | 0.387584 / 0.255139 (0.132445) | 0.412568 / 0.283200 (0.129368) | 0.120393 / 0.141683 (-0.021290) | 1.730996 / 1.452155 (0.278841) | 1.821538 / 1.492716 (0.328822) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.245688 / 0.018006 (0.227682) | 0.484888 / 0.000490 (0.484398) | 0.000485 / 0.000200 (0.000285) | 0.000068 / 0.000054 (0.000013) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032340 / 0.037411 (-0.005072) | 0.130819 / 0.014526 (0.116293) | 0.138491 / 0.176557 (-0.038065) | 0.196902 / 0.737135 (-0.540233) | 0.145404 / 0.296338 (-0.150935) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.487643 / 0.215209 (0.272434) | 4.818956 / 2.077655 (2.741301) | 2.332316 / 1.504120 (0.828196) | 2.102018 / 1.541195 (0.560823) | 2.156743 / 1.468490 (0.688253) | 0.803365 / 4.584777 (-3.781412) | 4.308561 / 3.745712 (0.562849) | 2.373331 / 5.269862 (-2.896530) | 1.539474 / 4.565676 (-3.026202) | 0.099081 / 0.424275 (-0.325194) | 0.014627 / 0.007607 (0.007020) | 0.609883 / 0.226044 (0.383838) | 6.092402 / 2.268929 (3.823474) | 2.858137 / 55.444624 (-52.586488) | 2.463256 / 6.876477 (-4.413220) | 2.637048 / 2.142072 (0.494976) | 0.959552 / 4.805227 (-3.845676) | 0.194170 / 6.500664 (-6.306495) | 0.075231 / 0.075469 (-0.000238) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.516502 / 1.841788 (-0.325285) | 18.077893 / 8.074308 (10.003585) | 16.507961 / 10.191392 (6.316569) | 0.171643 / 0.680424 (-0.508780) | 0.020378 / 0.534201 (-0.513823) | 0.491508 / 0.579283 (-0.087775) | 0.492136 / 0.434364 (0.057772) | 0.602258 / 0.540337 (0.061920) | 0.719882 / 1.386936 (-0.667054) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#330ac3e95fd3f2d61bac31b5b9c24399a5b54723 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006572 / 0.011353 (-0.004781) | 0.004647 / 0.011008 (-0.006362) | 0.098277 / 0.038508 (0.059769) | 0.027937 / 0.023109 (0.004828) | 0.339833 / 0.275898 (0.063935) | 0.398305 / 0.323480 (0.074825) | 0.005093 / 0.007986 (-0.002893) | 0.003374 / 0.004328 (-0.000954) | 0.075287 / 0.004250 (0.071037) | 0.037355 / 0.037052 (0.000303) | 0.339779 / 0.258489 (0.081290) | 0.403756 / 0.293841 (0.109915) | 0.030705 / 0.128546 (-0.097841) | 0.011596 / 0.075646 (-0.064050) | 0.323809 / 0.419271 (-0.095463) | 0.043357 / 0.043533 (-0.000176) | 0.342817 / 0.255139 (0.087678) | 0.386330 / 0.283200 (0.103130) | 0.088229 / 0.141683 (-0.053454) | 1.466017 / 1.452155 (0.013862) | 1.566551 / 1.492716 (0.073835) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.196276 / 0.018006 (0.178269) | 0.420321 / 0.000490 (0.419831) | 0.002234 / 0.000200 (0.002034) | 0.000071 / 0.000054 (0.000016) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023999 / 0.037411 (-0.013412) | 0.095117 / 0.014526 (0.080592) | 0.102544 / 0.176557 (-0.074013) | 0.164796 / 0.737135 (-0.572340) | 0.107030 / 0.296338 (-0.189309) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.429299 / 0.215209 (0.214089) | 4.272503 / 2.077655 (2.194849) | 2.101890 / 1.504120 (0.597771) | 1.978907 / 1.541195 (0.437713) | 2.008993 / 1.468490 (0.540503) | 0.695171 / 4.584777 (-3.889606) | 3.427050 / 3.745712 (-0.318662) | 1.892945 / 5.269862 (-3.376917) | 1.247156 / 4.565676 (-3.318521) | 0.082576 / 0.424275 (-0.341699) | 0.012526 / 0.007607 (0.004918) | 0.526338 / 0.226044 (0.300293) | 5.313855 / 2.268929 (3.044927) | 2.421134 / 55.444624 (-53.023490) | 2.072026 / 6.876477 (-4.804451) | 2.159846 / 2.142072 (0.017773) | 0.800753 / 4.805227 (-4.004474) | 0.150507 / 6.500664 (-6.350157) | 0.066378 / 0.075469 (-0.009091) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.218709 / 1.841788 (-0.623079) | 13.649239 / 8.074308 (5.574931) | 13.952762 / 10.191392 (3.761370) | 0.141967 / 0.680424 (-0.538457) | 0.016443 / 0.534201 (-0.517758) | 0.380408 / 0.579283 (-0.198875) | 0.377693 / 0.434364 (-0.056671) | 0.439819 / 0.540337 (-0.100518) | 0.529667 / 1.386936 (-0.857269) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006722 / 0.011353 (-0.004630) | 0.004495 / 0.011008 (-0.006513) | 0.075459 / 0.038508 (0.036951) | 0.028135 / 0.023109 (0.005026) | 0.349904 / 0.275898 (0.074006) | 0.390620 / 0.323480 (0.067140) | 0.005175 / 0.007986 (-0.002810) | 0.004720 / 0.004328 (0.000392) | 0.074243 / 0.004250 (0.069993) | 0.039084 / 0.037052 (0.002032) | 0.352486 / 0.258489 (0.093997) | 0.397549 / 0.293841 (0.103708) | 0.030596 / 0.128546 (-0.097950) | 0.011627 / 0.075646 (-0.064020) | 0.083394 / 0.419271 (-0.335878) | 0.042155 / 0.043533 (-0.001378) | 0.345668 / 0.255139 (0.090529) | 0.383474 / 0.283200 (0.100275) | 0.096530 / 0.141683 (-0.045153) | 1.493360 / 1.452155 (0.041206) | 1.572259 / 1.492716 (0.079543) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.162605 / 0.018006 (0.144599) | 0.409513 / 0.000490 (0.409023) | 0.002029 / 0.000200 (0.001829) | 0.000069 / 0.000054 (0.000015) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025824 / 0.037411 (-0.011588) | 0.102439 / 0.014526 (0.087913) | 0.109515 / 0.176557 (-0.067041) | 0.160650 / 0.737135 (-0.576486) | 0.112971 / 0.296338 (-0.183367) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.433293 / 0.215209 (0.218084) | 4.340286 / 2.077655 (2.262631) | 2.055857 / 1.504120 (0.551737) | 1.854451 / 1.541195 (0.313256) | 1.912752 / 1.468490 (0.444261) | 0.700076 / 4.584777 (-3.884701) | 3.361542 / 3.745712 (-0.384170) | 2.760204 / 5.269862 (-2.509658) | 1.477395 / 4.565676 (-3.088282) | 0.082868 / 0.424275 (-0.341407) | 0.012479 / 0.007607 (0.004872) | 0.532749 / 0.226044 (0.306704) | 5.323701 / 2.268929 (3.054772) | 2.509524 / 55.444624 (-52.935100) | 2.168668 / 6.876477 (-4.707809) | 2.259112 / 2.142072 (0.117040) | 0.806686 / 4.805227 (-3.998542) | 0.154620 / 6.500664 (-6.346044) | 0.068348 / 0.075469 (-0.007121) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.316512 / 1.841788 (-0.525276) | 14.158143 / 8.074308 (6.083835) | 14.110643 / 10.191392 (3.919251) | 0.143760 / 0.680424 (-0.536664) | 0.016851 / 0.534201 (-0.517350) | 0.376594 / 0.579283 (-0.202689) | 0.386957 / 0.434364 (-0.047407) | 0.466185 / 0.540337 (-0.074152) | 0.550269 / 1.386936 (-0.836667) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#8e1af7b30c94ce77abd9de732f19198e197d900c \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009457 / 0.011353 (-0.001896) | 0.006453 / 0.011008 (-0.004555) | 0.136392 / 0.038508 (0.097884) | 0.038378 / 0.023109 (0.015269) | 0.413171 / 0.275898 (0.137273) | 0.451605 / 0.323480 (0.128126) | 0.007123 / 0.007986 (-0.000863) | 0.006316 / 0.004328 (0.001987) | 0.103009 / 0.004250 (0.098758) | 0.049182 / 0.037052 (0.012130) | 0.398635 / 0.258489 (0.140146) | 0.463146 / 0.293841 (0.169305) | 0.056247 / 0.128546 (-0.072299) | 0.019589 / 0.075646 (-0.056058) | 0.475882 / 0.419271 (0.056610) | 0.094918 / 0.043533 (0.051385) | 0.416502 / 0.255139 (0.161363) | 0.447129 / 0.283200 (0.163929) | 0.133314 / 0.141683 (-0.008369) | 2.132888 / 1.452155 (0.680733) | 2.073383 / 1.492716 (0.580667) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.273037 / 0.018006 (0.255030) | 0.625675 / 0.000490 (0.625185) | 0.003449 / 0.000200 (0.003249) | 0.000185 / 0.000054 (0.000130) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031889 / 0.037411 (-0.005523) | 0.131673 / 0.014526 (0.117148) | 0.141575 / 0.176557 (-0.034982) | 0.214978 / 0.737135 (-0.522158) | 0.145586 / 0.296338 (-0.150752) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.711135 / 0.215209 (0.495926) | 7.162492 / 2.077655 (5.084837) | 2.906028 / 1.504120 (1.401908) | 2.488855 / 1.541195 (0.947660) | 2.574628 / 1.468490 (1.106138) | 1.587824 / 4.584777 (-2.996953) | 6.332962 / 3.745712 (2.587250) | 5.419578 / 5.269862 (0.149717) | 2.935413 / 4.565676 (-1.630263) | 0.169159 / 0.424275 (-0.255116) | 0.015358 / 0.007607 (0.007751) | 0.862036 / 0.226044 (0.635992) | 8.559256 / 2.268929 (6.290328) | 3.530756 / 55.444624 (-51.913868) | 2.626288 / 6.876477 (-4.250188) | 2.770063 / 2.142072 (0.627990) | 1.500116 / 4.805227 (-3.305112) | 0.265109 / 6.500664 (-6.235555) | 0.084944 / 0.075469 (0.009475) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.631060 / 1.841788 (-0.210728) | 19.022827 / 8.074308 (10.948519) | 22.973632 / 10.191392 (12.782240) | 0.296265 / 0.680424 (-0.384158) | 0.032317 / 0.534201 (-0.501884) | 0.624171 / 0.579283 (0.044888) | 0.690643 / 0.434364 (0.256279) | 0.691206 / 0.540337 (0.150869) | 0.758855 / 1.386936 (-0.628081) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009441 / 0.011353 (-0.001912) | 0.006270 / 0.011008 (-0.004739) | 0.110284 / 0.038508 (0.071776) | 0.035952 / 0.023109 (0.012842) | 0.521894 / 0.275898 (0.245996) | 0.582624 / 0.323480 (0.259144) | 0.011400 / 0.007986 (0.003414) | 0.004677 / 0.004328 (0.000348) | 0.115721 / 0.004250 (0.111470) | 0.048521 / 0.037052 (0.011469) | 0.497142 / 0.258489 (0.238653) | 0.573733 / 0.293841 (0.279892) | 0.055788 / 0.128546 (-0.072759) | 0.020949 / 0.075646 (-0.054697) | 0.132968 / 0.419271 (-0.286303) | 0.063045 / 0.043533 (0.019512) | 0.537769 / 0.255139 (0.282630) | 0.527560 / 0.283200 (0.244361) | 0.123756 / 0.141683 (-0.017927) | 1.994111 / 1.452155 (0.541956) | 2.104623 / 1.492716 (0.611907) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.279057 / 0.018006 (0.261051) | 0.537342 / 0.000490 (0.536852) | 0.007782 / 0.000200 (0.007582) | 0.000115 / 0.000054 (0.000060) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032018 / 0.037411 (-0.005394) | 0.133456 / 0.014526 (0.118930) | 0.142039 / 0.176557 (-0.034517) | 0.213769 / 0.737135 (-0.523366) | 0.143811 / 0.296338 (-0.152527) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.680142 / 0.215209 (0.464933) | 6.450439 / 2.077655 (4.372784) | 2.820724 / 1.504120 (1.316604) | 2.520407 / 1.541195 (0.979212) | 2.568972 / 1.468490 (1.100482) | 1.250584 / 4.584777 (-3.334193) | 6.108222 / 3.745712 (2.362509) | 3.065965 / 5.269862 (-2.203897) | 2.108675 / 4.565676 (-2.457002) | 0.167870 / 0.424275 (-0.256405) | 0.015127 / 0.007607 (0.007520) | 0.849645 / 0.226044 (0.623600) | 8.508727 / 2.268929 (6.239799) | 3.707897 / 55.444624 (-51.736727) | 3.009279 / 6.876477 (-3.867198) | 3.067179 / 2.142072 (0.925106) | 1.516370 / 4.805227 (-3.288858) | 0.264845 / 6.500664 (-6.235819) | 0.095137 / 0.075469 (0.019668) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.826306 / 1.841788 (-0.015481) | 20.119641 / 8.074308 (12.045333) | 21.532158 / 10.191392 (11.340766) | 0.278631 / 0.680424 (-0.401793) | 0.029494 / 0.534201 (-0.504707) | 0.621887 / 0.579283 (0.042604) | 0.686864 / 0.434364 (0.252500) | 0.695412 / 0.540337 (0.155074) | 0.864829 / 1.386936 (-0.522108) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#8e1af7b30c94ce77abd9de732f19198e197d900c \"CML watermark\")\n" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007818 / 0.011353 (-0.003535) | 0.005456 / 0.011008 (-0.005552) | 0.114685 / 0.038508 (0.076177) | 0.038398 / 0.023109 (0.015289) | 0.351289 / 0.275898 (0.075391) | 0.389170 / 0.323480 (0.065690) | 0.006213 / 0.007986 (-0.001773) | 0.005796 / 0.004328 (0.001467) | 0.085315 / 0.004250 (0.081065) | 0.049251 / 0.037052 (0.012198) | 0.368119 / 0.258489 (0.109630) | 0.394725 / 0.293841 (0.100884) | 0.040390 / 0.128546 (-0.088157) | 0.014076 / 0.075646 (-0.061570) | 0.393771 / 0.419271 (-0.025500) | 0.058929 / 0.043533 (0.015397) | 0.349526 / 0.255139 (0.094387) | 0.378409 / 0.283200 (0.095210) | 0.114354 / 0.141683 (-0.027329) | 1.749244 / 1.452155 (0.297089) | 1.847946 / 1.492716 (0.355229) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.241648 / 0.018006 (0.223641) | 0.468419 / 0.000490 (0.467929) | 0.004311 / 0.000200 (0.004111) | 0.000091 / 0.000054 (0.000036) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.029978 / 0.037411 (-0.007433) | 0.121832 / 0.014526 (0.107306) | 0.133516 / 0.176557 (-0.043041) | 0.199174 / 0.737135 (-0.537961) | 0.138181 / 0.296338 (-0.158158) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.478346 / 0.215209 (0.263137) | 4.723967 / 2.077655 (2.646312) | 2.107724 / 1.504120 (0.603604) | 1.874810 / 1.541195 (0.333615) | 1.911568 / 1.468490 (0.443078) | 0.800966 / 4.584777 (-3.783811) | 4.399032 / 3.745712 (0.653320) | 2.346160 / 5.269862 (-2.923702) | 1.506673 / 4.565676 (-3.059004) | 0.099119 / 0.424275 (-0.325156) | 0.014055 / 0.007607 (0.006448) | 0.582419 / 0.226044 (0.356375) | 5.789147 / 2.268929 (3.520218) | 2.632443 / 55.444624 (-52.812182) | 2.217630 / 6.876477 (-4.658846) | 2.337709 / 2.142072 (0.195637) | 0.995345 / 4.805227 (-3.809882) | 0.200040 / 6.500664 (-6.300624) | 0.076855 / 0.075469 (0.001386) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.386104 / 1.841788 (-0.455683) | 17.109772 / 8.074308 (9.035464) | 16.147612 / 10.191392 (5.956220) | 0.162846 / 0.680424 (-0.517577) | 0.020692 / 0.534201 (-0.513509) | 0.495752 / 0.579283 (-0.083531) | 0.475715 / 0.434364 (0.041351) | 0.619826 / 0.540337 (0.079488) | 0.720745 / 1.386936 (-0.666191) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008255 / 0.011353 (-0.003098) | 0.006118 / 0.011008 (-0.004890) | 0.088004 / 0.038508 (0.049496) | 0.039225 / 0.023109 (0.016116) | 0.399290 / 0.275898 (0.123392) | 0.432272 / 0.323480 (0.108792) | 0.007382 / 0.007986 (-0.000603) | 0.004576 / 0.004328 (0.000248) | 0.086511 / 0.004250 (0.082260) | 0.050472 / 0.037052 (0.013420) | 0.404160 / 0.258489 (0.145671) | 0.445356 / 0.293841 (0.151515) | 0.041549 / 0.128546 (-0.086997) | 0.014148 / 0.075646 (-0.061498) | 0.101697 / 0.419271 (-0.317574) | 0.057474 / 0.043533 (0.013941) | 0.395093 / 0.255139 (0.139954) | 0.418613 / 0.283200 (0.135414) | 0.123217 / 0.141683 (-0.018466) | 1.726146 / 1.452155 (0.273991) | 1.852746 / 1.492716 (0.360029) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.256876 / 0.018006 (0.238870) | 0.476336 / 0.000490 (0.475846) | 0.000465 / 0.000200 (0.000265) | 0.000068 / 0.000054 (0.000013) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.034304 / 0.037411 (-0.003107) | 0.132617 / 0.014526 (0.118091) | 0.141712 / 0.176557 (-0.034845) | 0.198101 / 0.737135 (-0.539034) | 0.150877 / 0.296338 (-0.145461) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.504717 / 0.215209 (0.289508) | 5.035060 / 2.077655 (2.957405) | 2.494812 / 1.504120 (0.990692) | 2.306601 / 1.541195 (0.765406) | 2.481860 / 1.468490 (1.013370) | 0.826041 / 4.584777 (-3.758736) | 4.414748 / 3.745712 (0.669036) | 2.417899 / 5.269862 (-2.851963) | 1.574548 / 4.565676 (-2.991128) | 0.101712 / 0.424275 (-0.322563) | 0.014388 / 0.007607 (0.006781) | 0.616674 / 0.226044 (0.390630) | 6.180382 / 2.268929 (3.911453) | 2.969110 / 55.444624 (-52.475514) | 2.574383 / 6.876477 (-4.302094) | 2.711008 / 2.142072 (0.568935) | 0.997679 / 4.805227 (-3.807548) | 0.201241 / 6.500664 (-6.299423) | 0.076132 / 0.075469 (0.000663) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.542704 / 1.841788 (-0.299084) | 17.610700 / 8.074308 (9.536392) | 16.152973 / 10.191392 (5.961581) | 0.166040 / 0.680424 (-0.514384) | 0.020286 / 0.534201 (-0.513915) | 0.506724 / 0.579283 (-0.072559) | 0.484348 / 0.434364 (0.049984) | 0.606524 / 0.540337 (0.066187) | 0.734997 / 1.386936 (-0.651939) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#a200ec9126a0879f3d38d4e9e3787633a23af42e \"CML watermark\")\n" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._" ]

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[ "Hi ! We're using process pools for parallelism right now. I was wondering if there's a package that implements the same API as a process pool but runs with Spark under the hood ? That or something similar would be cool because users could use whatever distributed framework they want this way.\r\n\r\nFeel free to ping us when you'd like to open PRs for this kind of things, so that we can discuss this before you start working on it ^^", "Hi, thanks for taking a look and providing your input! I don't know of such packages, and even it exists, I don't think with the process pool API it's possible to run Spark as backend properly; otherwise I understand a unified API would be preferable.\r\n\r\nThe process pool API requires splitting the workload to a fixed number parts for multiprocessing; meanwhile distributed framework such as Spark has sophisticated scheduler to distribute the workload to the processes on multiple machines in a cluster, so the way of splitting things for `multiprocessing.pool` would not suit / be as flexible as directly calling the `sparkContext.parallelize` API.\r\n\r\nI think this could be a good addition to scale the `datasets` implementation to distributed workers, and from my benchmark results so far it looks promising compared with multiprocessing.", "I see ! I think we only need an equivalent of `pool.map`. We use it to run download and conversion of data files on disk. That would require less changes in the internal code - and therefore less tests to write ;)\r\n\r\nWe also use `pool.apply_async` in some places with a `Queue` to get progress updates of the running jobs. I'm mentioning this in case there's a way to get a python generator from a running spark job ? This is less important though", "For Spark, `rdd.map` (where `rdd` can be created by `sparkContext.parallelize`) is the most similar as `pool.map`, but it requires creating a Spark RDD first that is used for distributing the `iterable` and the actual parallelization is managed by the Spark framework; `pool.map` takes the splits of `iterable` that are split into `num_proc` parts by the Python code. You can also check my PR #5807 in the `src/datasets/utils/py_utils.py` file to compare the differences of the APIs, it might make more sense than the the above description.\r\n\r\nGiven the different inputs and mechanisms of calling the `map` functions, this is why I think it's not that feasible to reuse most of the `multiprocessing` code.\r\n\r\nProgress bar updating might be challenging with Spark, I'll consider it as a followup work.", "Indeed I think the current use of multiprocessing.Pool in `map_nested` can be rewritten to work like `sparkContext.parallelize` - without splitting the iterable.\r\n\r\nMaybe from the user's perspective it's ok to let multiprocessing.Pool or spark distribute the load on their own, as long as it takes a list and runs jobs in parallel in the end :)\r\n", "From your feedback, seems to me there are two paths to consider now for supporting spark's `map` function in `map_nested` now:\r\n1. Keep the current `pool.map` implementation, and add an if statement for the spark's `map` code (which is what I did in my current PR) -- the code change is just a few lines in the `map_nested` function, and it has been tested by unit tests + manual testing on real Spark clusters; if you have other concerns I'd also be happy to address them.\r\n2. Rewrite the current `pool.map` implementation to remove splitting the iterable, and we will still need to add an if statement to use either\r\n```python\r\nwith Pool(...) as pool:\r\n mapped = pool.map(_single_map_nested, iterable)\r\n```\r\nor\r\n```python\r\nrdd = spark.sparkContext.parallelize(iterable)\r\nmapped = rdd.map(lambda obj: _single_map_nested((function, obj, types, None, True, None))).collect()\r\n```\r\nbecause there is no unified API that supports both `pool.map` and `rdd.map`. This can be more unified and flexible in the long run, but might require more work, and it will change the existing multiprocessing behavior, which is why I'm not leaning towards this option.\r\n\r\nAm I understanding correctly?", "Yup correct ! I think it's a nice path because it would be possible for users to define whatever parallel processing backend they want. I think we still need to discuss how that would look like in the `datasets` API : how to specify it has to use the \"spark\" parallel backend ? And how to specify the spark session parameters (number of executors etc.) ? Maybe there is something more practical than `use_spark=True`\r\n\r\nI'll check with the team internally if they have some ideas, but feel free to share your thoughts here !", "Sure, please let me know if you have more updates regarding the API and implementation from the team.\r\n\r\nFor parameters we don't need to worry about setting them for Spark, because Spark will figure out the environment / number of worker nodes by itself, so it's preferable to just provide some parameter such as `use_spark` to use the RDD `map` function.", "Hi! I wanted to check in to see if there is any update from the team.\r\n\r\nA potential change of API I can think of is change the argument to `distributed_backend=...`, which accepts `str`, such as `load_dataset(..., distributed_backend=\"spark\")`.\r\n\r\nImplementation wise, we can add a class / function to abstract away the details of using multiprocessing vs. spark vs. other parallel processing frameworks in `map_nested` and `_prepare_split`.", "I found this quite interesting: https://github.com/joblib/joblib-spark with this syntax:\r\n\r\n```python\r\nwith parallel_backend('spark', n_jobs=3):\r\n ...\r\n```\r\n\r\ncc @lu-wang-dl who might know better", "Joblib spark is providing Spark backend for joblib. We can implement a general parallel backend like\r\n```\r\nwith parallel_backend(\"<parallel-backedn>\", n_jobs=..):\r\n```\r\n\r\nIt can support multiprocessing , spark, ray, and etc. https://joblib.readthedocs.io/en/latest/parallel.html#joblib.parallel_backend", "Thank you @lhoestq for finding this repo. I validated that it can distribute downloading jobs with Spark to arbitrary cluster worker nodes evenly with `n_jobs=-1`.\r\n\r\nFor the API, I think it makes sense to define it as\r\n```python\r\nload_dataset(..., parallel_backend=<str>)\r\n```\r\nwhere `parallel_backend` can be `spark`, `multiprocessing`, and potentially other supported joblib backends including `ray` and `dask`.\r\n\r\nImplementation-wise, do you think it is better to just use `joblib` for `spark` backend in `map_nested`, or also migrate the `multiprocessing.Pool` code to use `joblib`?", "Hello @lhoestq, I wanted to follow up on my previous comment with some prototyping code that demonstrates how `map_nested` would be like if we unify `multiprocessing` and `spark` with `joblib`. The snippet hasn't hashed out the details such as dealing with `tqdm` yet.\r\n\r\nIn terms of API, the way of using multiprocessing is still the same; for Spark, the user sets `parallel_backend='spark'` can reuse the `num_proc` argument to pass in the number of executors, or preferably, just set `num_proc=-1` and joblib is able to decide it (I've validated it by running it on a Spark cluster).\r\n\r\n```python\r\ndef map_nested(\r\n # ... same args\r\n parallel_backend: Optional[str] = None, # proposed new argument\r\n):\r\n\r\n # ... same code\r\n\r\n # allow user to specify num_proc=-1, so that joblib will optimize it\r\n if (num_proc <= 1 and num_proc != -1) or len(iterable) < parallel_min_length:\r\n # same code\r\n mapped = [\r\n _single_map_nested((function, obj, types, None, True, None))\r\n for obj in logging.tqdm(iterable, disable=disable_tqdm, desc=desc)\r\n ]\r\n else:\r\n if not parallel_backend:\r\n parallel_backend = 'loky' # 'loky' is joblib's own implementation of robust multiprocessing\r\n \r\n n_jobs = min(num_proc, len(iterable))\r\n\r\n if parallel_backend == 'spark':\r\n n_jobs = -1 # 'loky' is joblib's own implementation of robust multiprocessing\r\n from joblibspark import register_spark\r\n register_spark()\r\n\r\n # parallelized with the same API\r\n with joblib.parallel_backend(parallel_backend, n_jobs=n_jobs):\r\n mapped = joblib.Parallel()(\r\n joblib.delayed(\r\n _single_map_nested((function, obj, types, None, True, None))\r\n )(obj) for obj in logging.tqdm(iterable, disable=disable_tqdm, desc=desc)\r\n )\r\n \r\n # ... same code\r\n```\r\nWe can always `joblib` for Spark and other distributed backends such as Ray if people want to support them later. It's worth noting that some distributed backends do not currently have `joblib` implementations.\r\n\r\nI would appreciate your thoughts on this proposed new API. We can also discuss the pros and cons of migrating the `multiprocessing` code to `joblib` later.", "Nice ! It should be quite easy to make the change then :)\r\n\r\nI think adding spark support can actually be less than 20 lines of code and would roughly require one line of code to change in map_nested:\r\n\r\nMaybe we can define a new `datasets.parallel` submodule that has the `parallel_backend()` context manager and a `parallel_map()` function that uses `Pool.map` by default and `joblib` otherwise.\r\n\r\n`joblib` would be an optional dependency, and `joblib-spark` as well.\r\n\r\nThen whenever someone wants to use Spark, they can do something like this (similar to scikit-learn parallel_backend):\r\n\r\n```python\r\nfrom datasets.parallel import parallel_backend\r\n\r\nwith parallel_backend(\"spark\"):\r\n ds = load_dataset(...)\r\n```\r\n\r\nWhat do you think ?", "Although until we've switched to all the steps in `load_dataset` to use `datasets.parallel`, I would require the user to explicitly say which step should use Spark. Maybe something like this, but I'm not sure yet:\r\n\r\n```python\r\nfrom datasets.parallel import parallel_backend\r\n\r\nwith parallel_backend(\"spark\", steps=[\"download\"]):\r\n ds = load_dataset(...)\r\n```\r\nfor now some steps can be NotImplemented:\r\n```python\r\nfrom datasets.parallel import parallel_backend\r\n\r\nwith parallel_backend(\"spark\", steps=[\"download\", \"prepare\"]):\r\n# NotImplementedError: the \"prepare\" step that converts the raw data files to Arrow is not compatible with the \"spark\" backend yet\r\n```\r\n\r\nThis way we can progressively roll out Spark support for the other data loading/processing steps without breaking changes between `datasets` versions", "Sounds good! I like the partial rollout idea.\r\nSo for example `map_nested` would call `parallel_map` under the hood if `num_proc != 1` or `parallel_backend` is specified right?\r\nI would be happy to start a PR next week to explore this path.", "Awesome ! I think map_nested can call `parallel_map()` if num_proc > 1, and `parallel_map` can be responsible to use Pool.map by default or joblib." ]

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[ "Hi @haonan-li , thank you for the report! It seems to be a bug on the [`huggingface_hub`](https://github.com/huggingface/huggingface_hub) site, there is even no such dataset as `mbzuai/bactrian-x` on the Hub. I opened and [issue](https://github.com/huggingface/huggingface_hub/issues/1453) there.", "I think `load_dataset(\"mbzuai/bactrian-x\")` shouldn't be loaded at all and raise an error but because of [this fallback](https://github.com/huggingface/datasets/blob/main/src/datasets/load.py#L1194) to packaged loaders when no other options are applicable, it loads the dataset with standard `json` loader instead of the custom loading script." ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.010480 / 0.011353 (-0.000872) | 0.006743 / 0.011008 (-0.004265) | 0.126503 / 0.038508 (0.087995) | 0.036918 / 0.023109 (0.013808) | 0.387372 / 0.275898 (0.111474) | 0.456930 / 0.323480 (0.133450) | 0.008038 / 0.007986 (0.000052) | 0.005082 / 0.004328 (0.000753) | 0.093312 / 0.004250 (0.089062) | 0.065440 / 0.037052 (0.028387) | 0.378172 / 0.258489 (0.119683) | 0.430049 / 0.293841 (0.136208) | 0.054372 / 0.128546 (-0.074174) | 0.021875 / 0.075646 (-0.053772) | 0.441722 / 0.419271 (0.022450) | 0.063716 / 0.043533 (0.020183) | 0.375718 / 0.255139 (0.120579) | 0.413688 / 0.283200 (0.130488) | 0.122583 / 0.141683 (-0.019100) | 1.835992 / 1.452155 (0.383838) | 1.915862 / 1.492716 (0.423145) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.275305 / 0.018006 (0.257299) | 0.617170 / 0.000490 (0.616680) | 0.006467 / 0.000200 (0.006267) | 0.000117 / 0.000054 (0.000063) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031057 / 0.037411 (-0.006354) | 0.135178 / 0.014526 (0.120653) | 0.139265 / 0.176557 (-0.037292) | 0.221597 / 0.737135 (-0.515538) | 0.147632 / 0.296338 (-0.148706) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.640621 / 0.215209 (0.425411) | 6.354359 / 2.077655 (4.276704) | 2.748945 / 1.504120 (1.244825) | 2.396637 / 1.541195 (0.855442) | 2.395193 / 1.468490 (0.926703) | 1.209604 / 4.584777 (-3.375173) | 5.626901 / 3.745712 (1.881189) | 3.300941 / 5.269862 (-1.968920) | 2.123598 / 4.565676 (-2.442078) | 0.144270 / 0.424275 (-0.280005) | 0.015114 / 0.007607 (0.007507) | 0.812352 / 0.226044 (0.586307) | 8.024250 / 2.268929 (5.755322) | 3.557589 / 55.444624 (-51.887036) | 2.840632 / 6.876477 (-4.035845) | 3.152319 / 2.142072 (1.010246) | 1.447232 / 4.805227 (-3.357995) | 0.251740 / 6.500664 (-6.248924) | 0.083725 / 0.075469 (0.008256) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.568032 / 1.841788 (-0.273755) | 18.463860 / 8.074308 (10.389552) | 21.217395 / 10.191392 (11.026003) | 0.228457 / 0.680424 (-0.451967) | 0.031398 / 0.534201 (-0.502803) | 0.547627 / 0.579283 (-0.031656) | 0.642921 / 0.434364 (0.208557) | 0.687857 / 0.540337 (0.147520) | 0.800940 / 1.386936 (-0.585996) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009933 / 0.011353 (-0.001420) | 0.006065 / 0.011008 (-0.004943) | 0.102556 / 0.038508 (0.064048) | 0.034646 / 0.023109 (0.011537) | 0.437951 / 0.275898 (0.162053) | 0.482439 / 0.323480 (0.158959) | 0.007715 / 0.007986 (-0.000271) | 0.007426 / 0.004328 (0.003098) | 0.096427 / 0.004250 (0.092177) | 0.052983 / 0.037052 (0.015930) | 0.464533 / 0.258489 (0.206044) | 0.484848 / 0.293841 (0.191007) | 0.050415 / 0.128546 (-0.078131) | 0.021001 / 0.075646 (-0.054645) | 0.121214 / 0.419271 (-0.298058) | 0.061658 / 0.043533 (0.018125) | 0.431898 / 0.255139 (0.176759) | 0.482106 / 0.283200 (0.198907) | 0.128524 / 0.141683 (-0.013159) | 1.775714 / 1.452155 (0.323559) | 1.904738 / 1.492716 (0.412021) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.287641 / 0.018006 (0.269635) | 0.600667 / 0.000490 (0.600178) | 0.005097 / 0.000200 (0.004897) | 0.000112 / 0.000054 (0.000057) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032836 / 0.037411 (-0.004575) | 0.133114 / 0.014526 (0.118588) | 0.150874 / 0.176557 (-0.025683) | 0.217069 / 0.737135 (-0.520066) | 0.160387 / 0.296338 (-0.135951) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.668444 / 0.215209 (0.453235) | 6.240015 / 2.077655 (4.162360) | 2.808661 / 1.504120 (1.304542) | 2.336550 / 1.541195 (0.795356) | 2.538973 / 1.468490 (1.070483) | 1.189292 / 4.584777 (-3.395485) | 5.781028 / 3.745712 (2.035315) | 3.149895 / 5.269862 (-2.119967) | 2.130646 / 4.565676 (-2.435030) | 0.144944 / 0.424275 (-0.279331) | 0.014650 / 0.007607 (0.007043) | 0.792313 / 0.226044 (0.566269) | 7.933108 / 2.268929 (5.664180) | 3.527527 / 55.444624 (-51.917098) | 2.864271 / 6.876477 (-4.012205) | 3.098330 / 2.142072 (0.956258) | 1.421208 / 4.805227 (-3.384019) | 0.255638 / 6.500664 (-6.245026) | 0.086971 / 0.075469 (0.011502) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.585317 / 1.841788 (-0.256471) | 18.643133 / 8.074308 (10.568825) | 21.921256 / 10.191392 (11.729864) | 0.215493 / 0.680424 (-0.464931) | 0.028348 / 0.534201 (-0.505853) | 0.556925 / 0.579283 (-0.022358) | 0.631480 / 0.434364 (0.197116) | 0.654026 / 0.540337 (0.113689) | 0.799727 / 1.386936 (-0.587209) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#62520514b524b5904c7e4f0beddab1971212a96a \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006516 / 0.011353 (-0.004837) | 0.004500 / 0.011008 (-0.006509) | 0.097639 / 0.038508 (0.059131) | 0.028336 / 0.023109 (0.005227) | 0.377263 / 0.275898 (0.101365) | 0.409209 / 0.323480 (0.085729) | 0.004832 / 0.007986 (-0.003154) | 0.004629 / 0.004328 (0.000301) | 0.075046 / 0.004250 (0.070795) | 0.034080 / 0.037052 (-0.002972) | 0.377565 / 0.258489 (0.119076) | 0.419204 / 0.293841 (0.125363) | 0.030343 / 0.128546 (-0.098203) | 0.011465 / 0.075646 (-0.064182) | 0.322777 / 0.419271 (-0.096494) | 0.043774 / 0.043533 (0.000241) | 0.375808 / 0.255139 (0.120669) | 0.402665 / 0.283200 (0.119465) | 0.086811 / 0.141683 (-0.054872) | 1.518686 / 1.452155 (0.066531) | 1.540381 / 1.492716 (0.047664) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.197730 / 0.018006 (0.179724) | 0.409285 / 0.000490 (0.408795) | 0.004739 / 0.000200 (0.004539) | 0.000084 / 0.000054 (0.000029) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.022974 / 0.037411 (-0.014437) | 0.096843 / 0.014526 (0.082317) | 0.103241 / 0.176557 (-0.073316) | 0.163691 / 0.737135 (-0.573444) | 0.107905 / 0.296338 (-0.188433) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.449408 / 0.215209 (0.234199) | 4.501375 / 2.077655 (2.423720) | 2.181491 / 1.504120 (0.677371) | 1.986153 / 1.541195 (0.444958) | 2.024735 / 1.468490 (0.556245) | 0.695368 / 4.584777 (-3.889409) | 3.416912 / 3.745712 (-0.328800) | 1.893343 / 5.269862 (-3.376519) | 1.275535 / 4.565676 (-3.290142) | 0.082772 / 0.424275 (-0.341503) | 0.012365 / 0.007607 (0.004758) | 0.553859 / 0.226044 (0.327814) | 5.540014 / 2.268929 (3.271085) | 2.634298 / 55.444624 (-52.810326) | 2.286686 / 6.876477 (-4.589790) | 2.384402 / 2.142072 (0.242330) | 0.806413 / 4.805227 (-3.998814) | 0.151757 / 6.500664 (-6.348907) | 0.067155 / 0.075469 (-0.008314) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.198776 / 1.841788 (-0.643012) | 13.517434 / 8.074308 (5.443126) | 13.926300 / 10.191392 (3.734908) | 0.141887 / 0.680424 (-0.538537) | 0.016571 / 0.534201 (-0.517630) | 0.383179 / 0.579283 (-0.196104) | 0.395189 / 0.434364 (-0.039175) | 0.479635 / 0.540337 (-0.060702) | 0.570576 / 1.386936 (-0.816360) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006691 / 0.011353 (-0.004662) | 0.004634 / 0.011008 (-0.006375) | 0.077087 / 0.038508 (0.038579) | 0.028281 / 0.023109 (0.005172) | 0.340108 / 0.275898 (0.064210) | 0.370611 / 0.323480 (0.047131) | 0.004997 / 0.007986 (-0.002988) | 0.003336 / 0.004328 (-0.000992) | 0.074814 / 0.004250 (0.070563) | 0.039001 / 0.037052 (0.001948) | 0.344225 / 0.258489 (0.085736) | 0.380621 / 0.293841 (0.086780) | 0.030858 / 0.128546 (-0.097689) | 0.011623 / 0.075646 (-0.064023) | 0.085016 / 0.419271 (-0.334256) | 0.042378 / 0.043533 (-0.001155) | 0.341428 / 0.255139 (0.086289) | 0.364823 / 0.283200 (0.081624) | 0.096695 / 0.141683 (-0.044988) | 1.527683 / 1.452155 (0.075528) | 1.585361 / 1.492716 (0.092645) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.184280 / 0.018006 (0.166274) | 0.397845 / 0.000490 (0.397355) | 0.004415 / 0.000200 (0.004215) | 0.000074 / 0.000054 (0.000020) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.024296 / 0.037411 (-0.013115) | 0.101053 / 0.014526 (0.086527) | 0.108968 / 0.176557 (-0.067589) | 0.155732 / 0.737135 (-0.581403) | 0.112604 / 0.296338 (-0.183735) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.440819 / 0.215209 (0.225609) | 4.394017 / 2.077655 (2.316363) | 2.092456 / 1.504120 (0.588336) | 1.880186 / 1.541195 (0.338991) | 1.918035 / 1.468490 (0.449545) | 0.698059 / 4.584777 (-3.886718) | 3.422598 / 3.745712 (-0.323114) | 1.860465 / 5.269862 (-3.409396) | 1.157788 / 4.565676 (-3.407889) | 0.083566 / 0.424275 (-0.340709) | 0.012440 / 0.007607 (0.004832) | 0.549526 / 0.226044 (0.323481) | 5.500623 / 2.268929 (3.231694) | 2.546980 / 55.444624 (-52.897644) | 2.199527 / 6.876477 (-4.676949) | 2.297276 / 2.142072 (0.155203) | 0.801580 / 4.805227 (-4.003648) | 0.151842 / 6.500664 (-6.348822) | 0.067165 / 0.075469 (-0.008305) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.329097 / 1.841788 (-0.512691) | 13.830354 / 8.074308 (5.756046) | 14.155250 / 10.191392 (3.963858) | 0.144517 / 0.680424 (-0.535907) | 0.016738 / 0.534201 (-0.517463) | 0.379337 / 0.579283 (-0.199946) | 0.391382 / 0.434364 (-0.042982) | 0.459153 / 0.540337 (-0.081184) | 0.547287 / 1.386936 (-0.839649) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#2efb0289c887ec60d54e0715cd85c111cb45f9ee \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007176 / 0.011353 (-0.004177) | 0.005125 / 0.011008 (-0.005883) | 0.096060 / 0.038508 (0.057552) | 0.033262 / 0.023109 (0.010152) | 0.311461 / 0.275898 (0.035563) | 0.340673 / 0.323480 (0.017193) | 0.005700 / 0.007986 (-0.002286) | 0.005223 / 0.004328 (0.000894) | 0.072812 / 0.004250 (0.068561) | 0.042078 / 0.037052 (0.005025) | 0.320042 / 0.258489 (0.061553) | 0.346539 / 0.293841 (0.052698) | 0.035284 / 0.128546 (-0.093262) | 0.012021 / 0.075646 (-0.063625) | 0.331555 / 0.419271 (-0.087717) | 0.051058 / 0.043533 (0.007525) | 0.303001 / 0.255139 (0.047862) | 0.328431 / 0.283200 (0.045231) | 0.100954 / 0.141683 (-0.040729) | 1.407445 / 1.452155 (-0.044710) | 1.512826 / 1.492716 (0.020110) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.216442 / 0.018006 (0.198436) | 0.446298 / 0.000490 (0.445809) | 0.004701 / 0.000200 (0.004501) | 0.000084 / 0.000054 (0.000030) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.028088 / 0.037411 (-0.009324) | 0.108669 / 0.014526 (0.094144) | 0.119597 / 0.176557 (-0.056960) | 0.178249 / 0.737135 (-0.558886) | 0.123914 / 0.296338 (-0.172424) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.413437 / 0.215209 (0.198228) | 4.136602 / 2.077655 (2.058947) | 1.875872 / 1.504120 (0.371752) | 1.680783 / 1.541195 (0.139588) | 1.757059 / 1.468490 (0.288569) | 0.711080 / 4.584777 (-3.873697) | 3.791701 / 3.745712 (0.045989) | 2.111612 / 5.269862 (-3.158250) | 1.351204 / 4.565676 (-3.214473) | 0.086477 / 0.424275 (-0.337798) | 0.012359 / 0.007607 (0.004752) | 0.504984 / 0.226044 (0.278940) | 5.040456 / 2.268929 (2.771527) | 2.266946 / 55.444624 (-53.177679) | 1.957827 / 6.876477 (-4.918650) | 2.120490 / 2.142072 (-0.021583) | 0.856148 / 4.805227 (-3.949079) | 0.172414 / 6.500664 (-6.328250) | 0.066833 / 0.075469 (-0.008636) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.198163 / 1.841788 (-0.643625) | 14.944930 / 8.074308 (6.870622) | 14.317196 / 10.191392 (4.125804) | 0.166104 / 0.680424 (-0.514320) | 0.017443 / 0.534201 (-0.516758) | 0.423025 / 0.579283 (-0.156258) | 0.437476 / 0.434364 (0.003112) | 0.500156 / 0.540337 (-0.040181) | 0.606226 / 1.386936 (-0.780710) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007417 / 0.011353 (-0.003936) | 0.005143 / 0.011008 (-0.005865) | 0.076401 / 0.038508 (0.037893) | 0.034818 / 0.023109 (0.011709) | 0.339633 / 0.275898 (0.063735) | 0.373839 / 0.323480 (0.050359) | 0.006004 / 0.007986 (-0.001982) | 0.005403 / 0.004328 (0.001075) | 0.074150 / 0.004250 (0.069899) | 0.050489 / 0.037052 (0.013436) | 0.343357 / 0.258489 (0.084868) | 0.377009 / 0.293841 (0.083168) | 0.035921 / 0.128546 (-0.092625) | 0.012197 / 0.075646 (-0.063449) | 0.087992 / 0.419271 (-0.331279) | 0.049452 / 0.043533 (0.005919) | 0.340495 / 0.255139 (0.085356) | 0.360277 / 0.283200 (0.077077) | 0.111114 / 0.141683 (-0.030569) | 1.463888 / 1.452155 (0.011734) | 1.548320 / 1.492716 (0.055604) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.228437 / 0.018006 (0.210431) | 0.445120 / 0.000490 (0.444631) | 0.000392 / 0.000200 (0.000192) | 0.000058 / 0.000054 (0.000004) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.029965 / 0.037411 (-0.007446) | 0.113484 / 0.014526 (0.098958) | 0.125249 / 0.176557 (-0.051308) | 0.177201 / 0.737135 (-0.559934) | 0.128750 / 0.296338 (-0.167589) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.420089 / 0.215209 (0.204880) | 4.195772 / 2.077655 (2.118117) | 2.021539 / 1.504120 (0.517419) | 1.825118 / 1.541195 (0.283924) | 1.904090 / 1.468490 (0.435600) | 0.716276 / 4.584777 (-3.868501) | 3.742257 / 3.745712 (-0.003455) | 3.368880 / 5.269862 (-1.900981) | 1.728285 / 4.565676 (-2.837392) | 0.087656 / 0.424275 (-0.336619) | 0.012263 / 0.007607 (0.004656) | 0.524321 / 0.226044 (0.298277) | 5.217610 / 2.268929 (2.948682) | 2.474670 / 55.444624 (-52.969955) | 2.135452 / 6.876477 (-4.741025) | 2.292578 / 2.142072 (0.150505) | 0.852109 / 4.805227 (-3.953119) | 0.172031 / 6.500664 (-6.328633) | 0.065230 / 0.075469 (-0.010240) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.260494 / 1.841788 (-0.581293) | 15.019167 / 8.074308 (6.944859) | 14.647586 / 10.191392 (4.456193) | 0.170578 / 0.680424 (-0.509846) | 0.017619 / 0.534201 (-0.516582) | 0.423116 / 0.579283 (-0.156167) | 0.426680 / 0.434364 (-0.007684) | 0.519563 / 0.540337 (-0.020775) | 0.619335 / 1.386936 (-0.767601) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#e210dc20c19b5e6af05df9ca6e82984dfb42465f \"CML watermark\")\n" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.010844 / 0.011353 (-0.000509) | 0.007329 / 0.011008 (-0.003680) | 0.133764 / 0.038508 (0.095256) | 0.040213 / 0.023109 (0.017103) | 0.413466 / 0.275898 (0.137568) | 0.452860 / 0.323480 (0.129380) | 0.008109 / 0.007986 (0.000123) | 0.005773 / 0.004328 (0.001444) | 0.109969 / 0.004250 (0.105718) | 0.053001 / 0.037052 (0.015949) | 0.416377 / 0.258489 (0.157888) | 0.477486 / 0.293841 (0.183645) | 0.056556 / 0.128546 (-0.071990) | 0.024322 / 0.075646 (-0.051324) | 0.437750 / 0.419271 (0.018479) | 0.087732 / 0.043533 (0.044199) | 0.421540 / 0.255139 (0.166401) | 0.429143 / 0.283200 (0.145944) | 0.144864 / 0.141683 (0.003181) | 1.882785 / 1.452155 (0.430631) | 1.980721 / 1.492716 (0.488005) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.285497 / 0.018006 (0.267491) | 0.601820 / 0.000490 (0.601331) | 0.005003 / 0.000200 (0.004804) | 0.000122 / 0.000054 (0.000067) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.030673 / 0.037411 (-0.006739) | 0.126883 / 0.014526 (0.112357) | 0.137677 / 0.176557 (-0.038880) | 0.211504 / 0.737135 (-0.525632) | 0.144752 / 0.296338 (-0.151587) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.665845 / 0.215209 (0.450636) | 6.369040 / 2.077655 (4.291385) | 2.708979 / 1.504120 (1.204859) | 2.370842 / 1.541195 (0.829647) | 2.445987 / 1.468490 (0.977497) | 1.260806 / 4.584777 (-3.323971) | 5.979216 / 3.745712 (2.233504) | 3.334350 / 5.269862 (-1.935512) | 2.187298 / 4.565676 (-2.378379) | 0.155494 / 0.424275 (-0.268781) | 0.017351 / 0.007607 (0.009744) | 0.853626 / 0.226044 (0.627581) | 8.375001 / 2.268929 (6.106072) | 3.528312 / 55.444624 (-51.916313) | 2.890509 / 6.876477 (-3.985968) | 3.051016 / 2.142072 (0.908944) | 1.529811 / 4.805227 (-3.275416) | 0.273883 / 6.500664 (-6.226781) | 0.086617 / 0.075469 (0.011148) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.648231 / 1.841788 (-0.193557) | 19.487109 / 8.074308 (11.412801) | 23.474621 / 10.191392 (13.283229) | 0.221392 / 0.680424 (-0.459032) | 0.028878 / 0.534201 (-0.505323) | 0.582302 / 0.579283 (0.003019) | 0.615059 / 0.434364 (0.180695) | 0.656082 / 0.540337 (0.115745) | 0.740544 / 1.386936 (-0.646392) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.010687 / 0.011353 (-0.000665) | 0.007114 / 0.011008 (-0.003894) | 0.135426 / 0.038508 (0.096918) | 0.041027 / 0.023109 (0.017918) | 0.466441 / 0.275898 (0.190543) | 0.503545 / 0.323480 (0.180065) | 0.009418 / 0.007986 (0.001432) | 0.004976 / 0.004328 (0.000647) | 0.101342 / 0.004250 (0.097092) | 0.058289 / 0.037052 (0.021237) | 0.473715 / 0.258489 (0.215226) | 0.539556 / 0.293841 (0.245715) | 0.063138 / 0.128546 (-0.065408) | 0.020429 / 0.075646 (-0.055217) | 0.124179 / 0.419271 (-0.295093) | 0.066400 / 0.043533 (0.022867) | 0.450793 / 0.255139 (0.195654) | 0.494163 / 0.283200 (0.210964) | 0.131179 / 0.141683 (-0.010504) | 1.876396 / 1.452155 (0.424241) | 1.974148 / 1.492716 (0.481432) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.313362 / 0.018006 (0.295356) | 0.602618 / 0.000490 (0.602129) | 0.008279 / 0.000200 (0.008079) | 0.000155 / 0.000054 (0.000101) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.037250 / 0.037411 (-0.000161) | 0.144151 / 0.014526 (0.129625) | 0.155733 / 0.176557 (-0.020824) | 0.214334 / 0.737135 (-0.522801) | 0.167124 / 0.296338 (-0.129214) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.686471 / 0.215209 (0.471262) | 6.749174 / 2.077655 (4.671520) | 3.024941 / 1.504120 (1.520821) | 2.553363 / 1.541195 (1.012168) | 2.679107 / 1.468490 (1.210617) | 1.317212 / 4.584777 (-3.267565) | 5.917575 / 3.745712 (2.171862) | 3.412715 / 5.269862 (-1.857146) | 2.203478 / 4.565676 (-2.362198) | 0.150387 / 0.424275 (-0.273888) | 0.015977 / 0.007607 (0.008370) | 0.862999 / 0.226044 (0.636954) | 8.706459 / 2.268929 (6.437530) | 3.762648 / 55.444624 (-51.681977) | 2.992544 / 6.876477 (-3.883933) | 3.135796 / 2.142072 (0.993724) | 1.504140 / 4.805227 (-3.301088) | 0.268265 / 6.500664 (-6.232399) | 0.083297 / 0.075469 (0.007828) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.690193 / 1.841788 (-0.151594) | 19.912854 / 8.074308 (11.838546) | 23.568217 / 10.191392 (13.376825) | 0.285125 / 0.680424 (-0.395299) | 0.030593 / 0.534201 (-0.503608) | 0.565305 / 0.579283 (-0.013978) | 0.659283 / 0.434364 (0.224919) | 0.678864 / 0.540337 (0.138527) | 0.793634 / 1.386936 (-0.593302) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#9d0edbe3f3258b7e580d1b58c0eea6637b5e22b2 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.011615 / 0.011353 (0.000262) | 0.006716 / 0.011008 (-0.004292) | 0.146868 / 0.038508 (0.108360) | 0.037621 / 0.023109 (0.014512) | 0.425563 / 0.275898 (0.149664) | 0.483217 / 0.323480 (0.159737) | 0.007830 / 0.007986 (-0.000156) | 0.005940 / 0.004328 (0.001612) | 0.100771 / 0.004250 (0.096521) | 0.063907 / 0.037052 (0.026854) | 0.422993 / 0.258489 (0.164503) | 0.496514 / 0.293841 (0.202673) | 0.056004 / 0.128546 (-0.072542) | 0.021441 / 0.075646 (-0.054206) | 0.453589 / 0.419271 (0.034317) | 0.067555 / 0.043533 (0.024022) | 0.442490 / 0.255139 (0.187351) | 0.503941 / 0.283200 (0.220742) | 0.134023 / 0.141683 (-0.007660) | 1.886329 / 1.452155 (0.434175) | 2.030867 / 1.492716 (0.538150) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.288063 / 0.018006 (0.270057) | 0.627177 / 0.000490 (0.626687) | 0.006335 / 0.000200 (0.006135) | 0.000171 / 0.000054 (0.000116) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032424 / 0.037411 (-0.004987) | 0.132749 / 0.014526 (0.118223) | 0.144727 / 0.176557 (-0.031829) | 0.232577 / 0.737135 (-0.504558) | 0.157315 / 0.296338 (-0.139024) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.623058 / 0.215209 (0.407849) | 6.272447 / 2.077655 (4.194792) | 2.506778 / 1.504120 (1.002658) | 2.203094 / 1.541195 (0.661899) | 2.346972 / 1.468490 (0.878482) | 1.358498 / 4.584777 (-3.226279) | 5.879670 / 3.745712 (2.133958) | 5.818406 / 5.269862 (0.548545) | 3.231936 / 4.565676 (-1.333741) | 0.154013 / 0.424275 (-0.270263) | 0.021541 / 0.007607 (0.013934) | 0.823746 / 0.226044 (0.597702) | 8.140304 / 2.268929 (5.871375) | 3.366911 / 55.444624 (-52.077714) | 2.696856 / 6.876477 (-4.179621) | 2.845743 / 2.142072 (0.703671) | 1.522363 / 4.805227 (-3.282864) | 0.278938 / 6.500664 (-6.221726) | 0.085044 / 0.075469 (0.009575) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.681348 / 1.841788 (-0.160440) | 19.686703 / 8.074308 (11.612395) | 22.995655 / 10.191392 (12.804263) | 0.218876 / 0.680424 (-0.461548) | 0.029334 / 0.534201 (-0.504867) | 0.560846 / 0.579283 (-0.018438) | 0.645210 / 0.434364 (0.210846) | 0.697842 / 0.540337 (0.157505) | 0.832875 / 1.386936 (-0.554061) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009509 / 0.011353 (-0.001844) | 0.006471 / 0.011008 (-0.004537) | 0.101477 / 0.038508 (0.062969) | 0.035281 / 0.023109 (0.012171) | 0.470032 / 0.275898 (0.194134) | 0.501475 / 0.323480 (0.177995) | 0.007641 / 0.007986 (-0.000344) | 0.006784 / 0.004328 (0.002455) | 0.096111 / 0.004250 (0.091861) | 0.055199 / 0.037052 (0.018146) | 0.470095 / 0.258489 (0.211606) | 0.530955 / 0.293841 (0.237114) | 0.056161 / 0.128546 (-0.072385) | 0.022055 / 0.075646 (-0.053591) | 0.121585 / 0.419271 (-0.297686) | 0.063736 / 0.043533 (0.020203) | 0.470771 / 0.255139 (0.215632) | 0.490546 / 0.283200 (0.207346) | 0.128825 / 0.141683 (-0.012858) | 1.898639 / 1.452155 (0.446484) | 2.052305 / 1.492716 (0.559589) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.322526 / 0.018006 (0.304520) | 0.628096 / 0.000490 (0.627607) | 0.006837 / 0.000200 (0.006637) | 0.000199 / 0.000054 (0.000145) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.033830 / 0.037411 (-0.003581) | 0.136217 / 0.014526 (0.121691) | 0.147006 / 0.176557 (-0.029551) | 0.203950 / 0.737135 (-0.533185) | 0.150327 / 0.296338 (-0.146011) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.654287 / 0.215209 (0.439078) | 6.430306 / 2.077655 (4.352651) | 2.881750 / 1.504120 (1.377630) | 2.489505 / 1.541195 (0.948310) | 2.543037 / 1.468490 (1.074547) | 1.226682 / 4.584777 (-3.358094) | 5.902076 / 3.745712 (2.156364) | 3.335344 / 5.269862 (-1.934518) | 2.156738 / 4.565676 (-2.408939) | 0.151804 / 0.424275 (-0.272472) | 0.015238 / 0.007607 (0.007631) | 0.816364 / 0.226044 (0.590319) | 8.126367 / 2.268929 (5.857438) | 3.653222 / 55.444624 (-51.791402) | 2.886667 / 6.876477 (-3.989809) | 3.120852 / 2.142072 (0.978779) | 1.421423 / 4.805227 (-3.383804) | 0.264590 / 6.500664 (-6.236074) | 0.085716 / 0.075469 (0.010247) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.745258 / 1.841788 (-0.096530) | 19.379253 / 8.074308 (11.304945) | 23.827046 / 10.191392 (13.635654) | 0.267702 / 0.680424 (-0.412722) | 0.030253 / 0.534201 (-0.503948) | 0.542037 / 0.579283 (-0.037246) | 0.655946 / 0.434364 (0.221582) | 0.683525 / 0.540337 (0.143188) | 0.831333 / 1.386936 (-0.555603) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#5b011a258329375aa4dc7b414bd4e7b6363c5357 \"CML watermark\")\n" ]

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[ "Hi ! Thanks for reporting, I'm working on it ;)" ]

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[ "The issue with multichannel TIFF images has already been reported in Pillow (https://github.com/python-pillow/Pillow/issues/1888). We can't do much about it on our side.\r\n\r\nStill, to avoid the error, you can bypass the default Pillow decoding and define a custom one as follows:\r\n```python\r\nimport tifffile # pip install tifffile\r\n\r\ndset = dset.cast_column(\"image\", datasets.Image(decode=False))\r\n\r\ndef decode_mutlichannel_tiff(batch):\r\n batch[\"image\"] = [tifffile.imread(image[\"path\"]) for image in batch[\"image\"]]\r\n return batch\r\n\r\ndset.set_transform(decode_mutlichannel_tiff)\r\n```\r\n\r\nRegarding the annotations, in which format are they? In the COCO format? I think this is a bit too specific to have a built-in loader for it." ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007852 / 0.011353 (-0.003500) | 0.005804 / 0.011008 (-0.005204) | 0.098268 / 0.038508 (0.059760) | 0.036440 / 0.023109 (0.013331) | 0.299952 / 0.275898 (0.024054) | 0.335590 / 0.323480 (0.012111) | 0.006332 / 0.007986 (-0.001653) | 0.004218 / 0.004328 (-0.000110) | 0.074733 / 0.004250 (0.070483) | 0.055252 / 0.037052 (0.018200) | 0.300854 / 0.258489 (0.042365) | 0.353442 / 0.293841 (0.059601) | 0.036447 / 0.128546 (-0.092099) | 0.012638 / 0.075646 (-0.063009) | 0.336680 / 0.419271 (-0.082591) | 0.052436 / 0.043533 (0.008903) | 0.292606 / 0.255139 (0.037467) | 0.319676 / 0.283200 (0.036476) | 0.111137 / 0.141683 (-0.030546) | 1.449569 / 1.452155 (-0.002586) | 1.558110 / 1.492716 (0.065394) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.306043 / 0.018006 (0.288037) | 0.563174 / 0.000490 (0.562684) | 0.032227 / 0.000200 (0.032027) | 0.000491 / 0.000054 (0.000436) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.029874 / 0.037411 (-0.007537) | 0.109330 / 0.014526 (0.094805) | 0.122579 / 0.176557 (-0.053978) | 0.181398 / 0.737135 (-0.555737) | 0.127124 / 0.296338 (-0.169215) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.417950 / 0.215209 (0.202741) | 4.163883 / 2.077655 (2.086228) | 1.985209 / 1.504120 (0.481089) | 1.793660 / 1.541195 (0.252465) | 1.895193 / 1.468490 (0.426703) | 0.694331 / 4.584777 (-3.890446) | 3.820170 / 3.745712 (0.074458) | 2.180556 / 5.269862 (-3.089305) | 1.490671 / 4.565676 (-3.075006) | 0.086132 / 0.424275 (-0.338143) | 0.012289 / 0.007607 (0.004682) | 0.511182 / 0.226044 (0.285137) | 5.117855 / 2.268929 (2.848927) | 2.403914 / 55.444624 (-53.040710) | 2.071107 / 6.876477 (-4.805369) | 2.184108 / 2.142072 (0.042036) | 0.835028 / 4.805227 (-3.970199) | 0.167707 / 6.500664 (-6.332957) | 0.066724 / 0.075469 (-0.008746) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.203921 / 1.841788 (-0.637867) | 15.214676 / 8.074308 (7.140368) | 14.971337 / 10.191392 (4.779945) | 0.170225 / 0.680424 (-0.510199) | 0.017924 / 0.534201 (-0.516277) | 0.428532 / 0.579283 (-0.150751) | 0.449157 / 0.434364 (0.014793) | 0.507723 / 0.540337 (-0.032614) | 0.615331 / 1.386936 (-0.771605) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008172 / 0.011353 (-0.003181) | 0.005405 / 0.011008 (-0.005603) | 0.074684 / 0.038508 (0.036176) | 0.039133 / 0.023109 (0.016024) | 0.342598 / 0.275898 (0.066700) | 0.377752 / 0.323480 (0.054272) | 0.006655 / 0.007986 (-0.001331) | 0.005788 / 0.004328 (0.001459) | 0.074014 / 0.004250 (0.069763) | 0.056225 / 0.037052 (0.019173) | 0.342330 / 0.258489 (0.083841) | 0.381052 / 0.293841 (0.087211) | 0.036574 / 0.128546 (-0.091973) | 0.012472 / 0.075646 (-0.063174) | 0.087574 / 0.419271 (-0.331698) | 0.050178 / 0.043533 (0.006646) | 0.351116 / 0.255139 (0.095977) | 0.363772 / 0.283200 (0.080572) | 0.118313 / 0.141683 (-0.023370) | 1.436691 / 1.452155 (-0.015463) | 1.551397 / 1.492716 (0.058680) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.265201 / 0.018006 (0.247195) | 0.561855 / 0.000490 (0.561366) | 0.000463 / 0.000200 (0.000263) | 0.000058 / 0.000054 (0.000004) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.030540 / 0.037411 (-0.006871) | 0.118815 / 0.014526 (0.104289) | 0.127689 / 0.176557 (-0.048868) | 0.176211 / 0.737135 (-0.560924) | 0.133130 / 0.296338 (-0.163208) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.416318 / 0.215209 (0.201109) | 4.146806 / 2.077655 (2.069151) | 1.983437 / 1.504120 (0.479317) | 1.799733 / 1.541195 (0.258539) | 1.889026 / 1.468490 (0.420536) | 0.723330 / 4.584777 (-3.861447) | 3.817795 / 3.745712 (0.072083) | 2.158449 / 5.269862 (-3.111413) | 1.377348 / 4.565676 (-3.188328) | 0.088504 / 0.424275 (-0.335771) | 0.012560 / 0.007607 (0.004953) | 0.530382 / 0.226044 (0.304337) | 5.308529 / 2.268929 (3.039600) | 2.469655 / 55.444624 (-52.974970) | 2.136209 / 6.876477 (-4.740267) | 2.322997 / 2.142072 (0.180924) | 0.861396 / 4.805227 (-3.943831) | 0.172747 / 6.500664 (-6.327917) | 0.067617 / 0.075469 (-0.007852) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.263225 / 1.841788 (-0.578563) | 15.878025 / 8.074308 (7.803717) | 14.815627 / 10.191392 (4.624235) | 0.148722 / 0.680424 (-0.531702) | 0.018071 / 0.534201 (-0.516130) | 0.428389 / 0.579283 (-0.150894) | 0.428635 / 0.434364 (-0.005729) | 0.496953 / 0.540337 (-0.043385) | 0.592783 / 1.386936 (-0.794153) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#d2e5568dc7a47f9a99678d2889bd2e3c33afdd00 \"CML watermark\")\n" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007343 / 0.011353 (-0.004010) | 0.005145 / 0.011008 (-0.005863) | 0.099820 / 0.038508 (0.061312) | 0.033487 / 0.023109 (0.010378) | 0.313069 / 0.275898 (0.037171) | 0.335420 / 0.323480 (0.011940) | 0.005959 / 0.007986 (-0.002027) | 0.005373 / 0.004328 (0.001044) | 0.076568 / 0.004250 (0.072317) | 0.048702 / 0.037052 (0.011650) | 0.322957 / 0.258489 (0.064468) | 0.363044 / 0.293841 (0.069203) | 0.035070 / 0.128546 (-0.093476) | 0.012029 / 0.075646 (-0.063618) | 0.334664 / 0.419271 (-0.084607) | 0.050549 / 0.043533 (0.007017) | 0.310113 / 0.255139 (0.054974) | 0.324405 / 0.283200 (0.041205) | 0.097596 / 0.141683 (-0.044087) | 1.440741 / 1.452155 (-0.011414) | 1.531194 / 1.492716 (0.038478) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.220799 / 0.018006 (0.202793) | 0.438158 / 0.000490 (0.437668) | 0.007737 / 0.000200 (0.007537) | 0.000082 / 0.000054 (0.000027) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.026888 / 0.037411 (-0.010523) | 0.106281 / 0.014526 (0.091755) | 0.117419 / 0.176557 (-0.059138) | 0.179144 / 0.737135 (-0.557992) | 0.122477 / 0.296338 (-0.173861) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.412667 / 0.215209 (0.197458) | 4.108784 / 2.077655 (2.031129) | 1.834300 / 1.504120 (0.330180) | 1.627256 / 1.541195 (0.086061) | 1.691036 / 1.468490 (0.222546) | 0.713405 / 4.584777 (-3.871372) | 3.839262 / 3.745712 (0.093550) | 2.108453 / 5.269862 (-3.161408) | 1.340740 / 4.565676 (-3.224936) | 0.087776 / 0.424275 (-0.336499) | 0.012730 / 0.007607 (0.005123) | 0.505323 / 0.226044 (0.279279) | 5.085176 / 2.268929 (2.816247) | 2.307165 / 55.444624 (-53.137459) | 1.936771 / 6.876477 (-4.939706) | 2.097391 / 2.142072 (-0.044681) | 0.856215 / 4.805227 (-3.949012) | 0.171826 / 6.500664 (-6.328838) | 0.066603 / 0.075469 (-0.008866) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.202126 / 1.841788 (-0.639661) | 15.173598 / 8.074308 (7.099290) | 15.012645 / 10.191392 (4.821253) | 0.162187 / 0.680424 (-0.518237) | 0.017462 / 0.534201 (-0.516739) | 0.423895 / 0.579283 (-0.155388) | 0.432010 / 0.434364 (-0.002354) | 0.503234 / 0.540337 (-0.037104) | 0.598948 / 1.386936 (-0.787988) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007099 / 0.011353 (-0.004254) | 0.005167 / 0.011008 (-0.005841) | 0.075551 / 0.038508 (0.037043) | 0.033050 / 0.023109 (0.009940) | 0.339629 / 0.275898 (0.063731) | 0.380486 / 0.323480 (0.057006) | 0.005776 / 0.007986 (-0.002209) | 0.004029 / 0.004328 (-0.000299) | 0.075074 / 0.004250 (0.070823) | 0.046709 / 0.037052 (0.009656) | 0.340203 / 0.258489 (0.081714) | 0.380849 / 0.293841 (0.087008) | 0.035027 / 0.128546 (-0.093519) | 0.012226 / 0.075646 (-0.063420) | 0.087525 / 0.419271 (-0.331747) | 0.049361 / 0.043533 (0.005828) | 0.341854 / 0.255139 (0.086715) | 0.359590 / 0.283200 (0.076390) | 0.100102 / 0.141683 (-0.041581) | 1.482759 / 1.452155 (0.030605) | 1.569905 / 1.492716 (0.077189) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.213615 / 0.018006 (0.195609) | 0.441117 / 0.000490 (0.440628) | 0.004932 / 0.000200 (0.004732) | 0.000093 / 0.000054 (0.000038) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031313 / 0.037411 (-0.006098) | 0.110191 / 0.014526 (0.095665) | 0.125320 / 0.176557 (-0.051237) | 0.177658 / 0.737135 (-0.559477) | 0.127928 / 0.296338 (-0.168410) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.426952 / 0.215209 (0.211743) | 4.247731 / 2.077655 (2.170076) | 2.107318 / 1.504120 (0.603198) | 1.843845 / 1.541195 (0.302650) | 1.894822 / 1.468490 (0.426332) | 0.696232 / 4.584777 (-3.888545) | 3.826516 / 3.745712 (0.080804) | 2.126688 / 5.269862 (-3.143174) | 1.327062 / 4.565676 (-3.238615) | 0.085693 / 0.424275 (-0.338582) | 0.012226 / 0.007607 (0.004619) | 0.521904 / 0.226044 (0.295859) | 5.219798 / 2.268929 (2.950869) | 2.524908 / 55.444624 (-52.919716) | 2.212078 / 6.876477 (-4.664399) | 2.373944 / 2.142072 (0.231871) | 0.833846 / 4.805227 (-3.971381) | 0.169639 / 6.500664 (-6.331025) | 0.064538 / 0.075469 (-0.010931) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.254930 / 1.841788 (-0.586858) | 15.585277 / 8.074308 (7.510969) | 14.762857 / 10.191392 (4.571465) | 0.146959 / 0.680424 (-0.533465) | 0.017451 / 0.534201 (-0.516750) | 0.424469 / 0.579283 (-0.154814) | 0.422359 / 0.434364 (-0.012004) | 0.489930 / 0.540337 (-0.050408) | 0.595856 / 1.386936 (-0.791080) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#213c72f52ae52b662f967d3218f66c70a3043048 \"CML watermark\")\n", "@albertvillanova thanks for the review. As you prefer for the github CI config. I just took it from @lhoestq's branch when testing hfh==0.14.0. I think it's still relevant for next releases. In any case, I let you handle merging the PR :)", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008371 / 0.011353 (-0.002982) | 0.005210 / 0.011008 (-0.005798) | 0.105639 / 0.038508 (0.067131) | 0.045903 / 0.023109 (0.022794) | 0.391231 / 0.275898 (0.115333) | 0.438824 / 0.323480 (0.115345) | 0.006270 / 0.007986 (-0.001715) | 0.005950 / 0.004328 (0.001621) | 0.079685 / 0.004250 (0.075434) | 0.052121 / 0.037052 (0.015069) | 0.387787 / 0.258489 (0.129298) | 0.434322 / 0.293841 (0.140481) | 0.032598 / 0.128546 (-0.095948) | 0.012126 / 0.075646 (-0.063520) | 0.359658 / 0.419271 (-0.059613) | 0.046686 / 0.043533 (0.003154) | 0.391973 / 0.255139 (0.136834) | 0.421149 / 0.283200 (0.137949) | 0.105920 / 0.141683 (-0.035763) | 1.483008 / 1.452155 (0.030854) | 1.617010 / 1.492716 (0.124294) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.199111 / 0.018006 (0.181105) | 0.407995 / 0.000490 (0.407505) | 0.006706 / 0.000200 (0.006506) | 0.000229 / 0.000054 (0.000175) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.030247 / 0.037411 (-0.007164) | 0.115977 / 0.014526 (0.101451) | 0.118112 / 0.176557 (-0.058444) | 0.182710 / 0.737135 (-0.554426) | 0.122483 / 0.296338 (-0.173855) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.430455 / 0.215209 (0.215246) | 4.314298 / 2.077655 (2.236643) | 1.898124 / 1.504120 (0.394005) | 1.734909 / 1.541195 (0.193715) | 1.802400 / 1.468490 (0.333910) | 0.717237 / 4.584777 (-3.867539) | 4.004705 / 3.745712 (0.258993) | 2.138901 / 5.269862 (-3.130960) | 1.254037 / 4.565676 (-3.311640) | 0.085594 / 0.424275 (-0.338681) | 0.013774 / 0.007607 (0.006166) | 0.535218 / 0.226044 (0.309174) | 5.373730 / 2.268929 (3.104801) | 2.371194 / 55.444624 (-53.073430) | 2.111206 / 6.876477 (-4.765270) | 2.225137 / 2.142072 (0.083064) | 0.838325 / 4.805227 (-3.966902) | 0.159176 / 6.500664 (-6.341488) | 0.072285 / 0.075469 (-0.003184) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.352232 / 1.841788 (-0.489555) | 16.926722 / 8.074308 (8.852414) | 16.709531 / 10.191392 (6.518139) | 0.159249 / 0.680424 (-0.521175) | 0.017667 / 0.534201 (-0.516534) | 0.426894 / 0.579283 (-0.152390) | 0.539903 / 0.434364 (0.105539) | 0.537471 / 0.540337 (-0.002866) | 0.619592 / 1.386936 (-0.767344) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008354 / 0.011353 (-0.002999) | 0.005366 / 0.011008 (-0.005642) | 0.080961 / 0.038508 (0.042453) | 0.046574 / 0.023109 (0.023465) | 0.345949 / 0.275898 (0.070051) | 0.394041 / 0.323480 (0.070562) | 0.006209 / 0.007986 (-0.001777) | 0.005980 / 0.004328 (0.001651) | 0.076235 / 0.004250 (0.071984) | 0.051833 / 0.037052 (0.014780) | 0.348786 / 0.258489 (0.090297) | 0.397421 / 0.293841 (0.103580) | 0.033026 / 0.128546 (-0.095520) | 0.012217 / 0.075646 (-0.063429) | 0.087439 / 0.419271 (-0.331832) | 0.045488 / 0.043533 (0.001955) | 0.352160 / 0.255139 (0.097021) | 0.379079 / 0.283200 (0.095879) | 0.116111 / 0.141683 (-0.025572) | 1.470177 / 1.452155 (0.018022) | 1.587499 / 1.492716 (0.094783) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.296149 / 0.018006 (0.278143) | 0.592362 / 0.000490 (0.591872) | 0.000492 / 0.000200 (0.000292) | 0.000064 / 0.000054 (0.000010) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.036599 / 0.037411 (-0.000813) | 0.113768 / 0.014526 (0.099242) | 0.116198 / 0.176557 (-0.060358) | 0.180329 / 0.737135 (-0.556806) | 0.123942 / 0.296338 (-0.172396) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.452445 / 0.215209 (0.237236) | 4.504330 / 2.077655 (2.426675) | 2.275645 / 1.504120 (0.771525) | 2.107765 / 1.541195 (0.566571) | 2.086363 / 1.468490 (0.617873) | 0.723721 / 4.584777 (-3.861056) | 3.825330 / 3.745712 (0.079618) | 2.162743 / 5.269862 (-3.107119) | 1.255953 / 4.565676 (-3.309724) | 0.085860 / 0.424275 (-0.338415) | 0.013790 / 0.007607 (0.006183) | 0.560257 / 0.226044 (0.334213) | 5.618180 / 2.268929 (3.349251) | 2.625423 / 55.444624 (-52.819202) | 2.374381 / 6.876477 (-4.502095) | 2.496560 / 2.142072 (0.354488) | 0.841120 / 4.805227 (-3.964107) | 0.161541 / 6.500664 (-6.339123) | 0.075270 / 0.075469 (-0.000199) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.432916 / 1.841788 (-0.408872) | 14.858534 / 8.074308 (6.784226) | 14.973521 / 10.191392 (4.782129) | 0.148312 / 0.680424 (-0.532112) | 0.016811 / 0.534201 (-0.517390) | 0.382623 / 0.579283 (-0.196660) | 0.389767 / 0.434364 (-0.044596) | 0.449657 / 0.540337 (-0.090680) | 0.533723 / 1.386936 (-0.853214) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#f8344350f15265a585188ac986ae49a8ed8289fe \"CML watermark\")\n", "I agree it is good to have a way to run the CI on push, without needing to open a PR.\r\n\r\nBut I think the branch name should be more generic (and this is not specific to this PR). See:\r\n- #5790 ", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007208 / 0.011353 (-0.004145) | 0.005600 / 0.011008 (-0.005408) | 0.096129 / 0.038508 (0.057621) | 0.027834 / 0.023109 (0.004725) | 0.295106 / 0.275898 (0.019208) | 0.323983 / 0.323480 (0.000503) | 0.005164 / 0.007986 (-0.002822) | 0.003962 / 0.004328 (-0.000366) | 0.078339 / 0.004250 (0.074089) | 0.036974 / 0.037052 (-0.000078) | 0.310315 / 0.258489 (0.051826) | 0.338036 / 0.293841 (0.044195) | 0.042124 / 0.128546 (-0.086422) | 0.015886 / 0.075646 (-0.059760) | 0.337961 / 0.419271 (-0.081310) | 0.051507 / 0.043533 (0.007974) | 0.297505 / 0.255139 (0.042366) | 0.310728 / 0.283200 (0.027528) | 0.086312 / 0.141683 (-0.055371) | 1.356923 / 1.452155 (-0.095232) | 1.429366 / 1.492716 (-0.063350) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.205495 / 0.018006 (0.187489) | 0.460639 / 0.000490 (0.460149) | 0.003996 / 0.000200 (0.003796) | 0.000093 / 0.000054 (0.000038) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.021970 / 0.037411 (-0.015442) | 0.090283 / 0.014526 (0.075757) | 0.098579 / 0.176557 (-0.077978) | 0.160437 / 0.737135 (-0.576699) | 0.102738 / 0.296338 (-0.193600) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.494474 / 0.215209 (0.279265) | 4.967453 / 2.077655 (2.889799) | 2.045852 / 1.504120 (0.541732) | 1.858022 / 1.541195 (0.316827) | 1.771874 / 1.468490 (0.303384) | 1.186368 / 4.584777 (-3.398408) | 4.974762 / 3.745712 (1.229050) | 2.616225 / 5.269862 (-2.653636) | 1.702971 / 4.565676 (-2.862705) | 0.124929 / 0.424275 (-0.299346) | 0.011774 / 0.007607 (0.004167) | 0.569643 / 0.226044 (0.343598) | 5.793114 / 2.268929 (3.524186) | 2.441561 / 55.444624 (-53.003064) | 1.862233 / 6.876477 (-5.014243) | 1.931142 / 2.142072 (-0.210931) | 1.148915 / 4.805227 (-3.656313) | 0.203914 / 6.500664 (-6.296750) | 0.062468 / 0.075469 (-0.013001) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.188708 / 1.841788 (-0.653080) | 13.710830 / 8.074308 (5.636522) | 15.695153 / 10.191392 (5.503761) | 0.171467 / 0.680424 (-0.508957) | 0.024509 / 0.534201 (-0.509692) | 0.450270 / 0.579283 (-0.129014) | 0.500712 / 0.434364 (0.066348) | 0.488632 / 0.540337 (-0.051706) | 0.574893 / 1.386936 (-0.812043) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007254 / 0.011353 (-0.004099) | 0.006199 / 0.011008 (-0.004809) | 0.072079 / 0.038508 (0.033571) | 0.026909 / 0.023109 (0.003800) | 0.355538 / 0.275898 (0.079640) | 0.358625 / 0.323480 (0.035145) | 0.005564 / 0.007986 (-0.002421) | 0.005278 / 0.004328 (0.000950) | 0.076469 / 0.004250 (0.072219) | 0.038269 / 0.037052 (0.001216) | 0.355214 / 0.258489 (0.096725) | 0.383219 / 0.293841 (0.089378) | 0.046516 / 0.128546 (-0.082030) | 0.015393 / 0.075646 (-0.060254) | 0.088506 / 0.419271 (-0.330765) | 0.050326 / 0.043533 (0.006793) | 0.327265 / 0.255139 (0.072126) | 0.370176 / 0.283200 (0.086976) | 0.102438 / 0.141683 (-0.039245) | 1.378969 / 1.452155 (-0.073186) | 1.441998 / 1.492716 (-0.050719) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.209044 / 0.018006 (0.191038) | 0.455733 / 0.000490 (0.455243) | 0.005856 / 0.000200 (0.005656) | 0.000116 / 0.000054 (0.000061) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025336 / 0.037411 (-0.012075) | 0.097449 / 0.014526 (0.082923) | 0.106301 / 0.176557 (-0.070255) | 0.153053 / 0.737135 (-0.584082) | 0.107938 / 0.296338 (-0.188401) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.491070 / 0.215209 (0.275861) | 5.049637 / 2.077655 (2.971982) | 2.064709 / 1.504120 (0.560589) | 1.782266 / 1.541195 (0.241072) | 1.798570 / 1.468490 (0.330080) | 0.988886 / 4.584777 (-3.595891) | 4.690324 / 3.745712 (0.944612) | 4.317355 / 5.269862 (-0.952507) | 2.347596 / 4.565676 (-2.218081) | 0.117249 / 0.424275 (-0.307026) | 0.011614 / 0.007607 (0.004007) | 0.630033 / 0.226044 (0.403988) | 6.140108 / 2.268929 (3.871180) | 2.638080 / 55.444624 (-52.806545) | 2.133017 / 6.876477 (-4.743459) | 2.123392 / 2.142072 (-0.018680) | 1.178056 / 4.805227 (-3.627171) | 0.209465 / 6.500664 (-6.291199) | 0.063234 / 0.075469 (-0.012235) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.238089 / 1.841788 (-0.603699) | 14.066866 / 8.074308 (5.992558) | 16.225480 / 10.191392 (6.034088) | 0.206466 / 0.680424 (-0.473958) | 0.027279 / 0.534201 (-0.506922) | 0.443006 / 0.579283 (-0.136277) | 0.509512 / 0.434364 (0.075148) | 0.479075 / 0.540337 (-0.061263) | 0.573546 / 1.386936 (-0.813390) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#c6015a070c66a5bbd84603d415ccc57cb668b44b \"CML watermark\")\n" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "I think you can revert the last commit - it should fail if data_files={} IMO", "The validation of non-empty data_files is addressed in this PR:\r\n- #5802", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008622 / 0.011353 (-0.002730) | 0.005970 / 0.011008 (-0.005038) | 0.117797 / 0.038508 (0.079289) | 0.040955 / 0.023109 (0.017846) | 0.419538 / 0.275898 (0.143640) | 0.455816 / 0.323480 (0.132336) | 0.006481 / 0.007986 (-0.001505) | 0.004507 / 0.004328 (0.000178) | 0.089073 / 0.004250 (0.084822) | 0.052389 / 0.037052 (0.015337) | 0.420053 / 0.258489 (0.161564) | 0.466886 / 0.293841 (0.173045) | 0.042660 / 0.128546 (-0.085886) | 0.014673 / 0.075646 (-0.060973) | 0.411229 / 0.419271 (-0.008042) | 0.076993 / 0.043533 (0.033460) | 0.431693 / 0.255139 (0.176554) | 0.446283 / 0.283200 (0.163084) | 0.131408 / 0.141683 (-0.010275) | 1.820339 / 1.452155 (0.368184) | 1.952946 / 1.492716 (0.460230) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.246543 / 0.018006 (0.228537) | 0.489806 / 0.000490 (0.489317) | 0.013999 / 0.000200 (0.013800) | 0.000323 / 0.000054 (0.000269) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032541 / 0.037411 (-0.004870) | 0.130569 / 0.014526 (0.116043) | 0.139630 / 0.176557 (-0.036926) | 0.217018 / 0.737135 (-0.520118) | 0.147914 / 0.296338 (-0.148425) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.494767 / 0.215209 (0.279558) | 4.949313 / 2.077655 (2.871658) | 2.277023 / 1.504120 (0.772903) | 2.036677 / 1.541195 (0.495482) | 2.064461 / 1.468490 (0.595970) | 0.842484 / 4.584777 (-3.742293) | 4.720646 / 3.745712 (0.974934) | 4.025673 / 5.269862 (-1.244189) | 2.198606 / 4.565676 (-2.367070) | 0.103042 / 0.424275 (-0.321233) | 0.014794 / 0.007607 (0.007187) | 0.617867 / 0.226044 (0.391822) | 6.197146 / 2.268929 (3.928218) | 2.804927 / 55.444624 (-52.639697) | 2.426420 / 6.876477 (-4.450057) | 2.515182 / 2.142072 (0.373109) | 1.008098 / 4.805227 (-3.797129) | 0.204982 / 6.500664 (-6.295682) | 0.078643 / 0.075469 (0.003174) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.490790 / 1.841788 (-0.350997) | 17.268042 / 8.074308 (9.193734) | 17.129647 / 10.191392 (6.938255) | 0.170351 / 0.680424 (-0.510073) | 0.021317 / 0.534201 (-0.512884) | 0.517068 / 0.579283 (-0.062215) | 0.500200 / 0.434364 (0.065836) | 0.641974 / 0.540337 (0.101637) | 0.763984 / 1.386936 (-0.622952) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008358 / 0.011353 (-0.002995) | 0.005710 / 0.011008 (-0.005298) | 0.091077 / 0.038508 (0.052569) | 0.040413 / 0.023109 (0.017303) | 0.416634 / 0.275898 (0.140736) | 0.451122 / 0.323480 (0.127642) | 0.006417 / 0.007986 (-0.001569) | 0.004360 / 0.004328 (0.000032) | 0.089543 / 0.004250 (0.085292) | 0.051137 / 0.037052 (0.014085) | 0.420228 / 0.258489 (0.161739) | 0.458649 / 0.293841 (0.164808) | 0.041828 / 0.128546 (-0.086718) | 0.014268 / 0.075646 (-0.061379) | 0.105301 / 0.419271 (-0.313970) | 0.058931 / 0.043533 (0.015398) | 0.413445 / 0.255139 (0.158306) | 0.443882 / 0.283200 (0.160682) | 0.124946 / 0.141683 (-0.016737) | 1.842259 / 1.452155 (0.390104) | 1.948162 / 1.492716 (0.455445) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.235799 / 0.018006 (0.217792) | 0.487667 / 0.000490 (0.487177) | 0.001112 / 0.000200 (0.000912) | 0.000094 / 0.000054 (0.000039) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.034233 / 0.037411 (-0.003178) | 0.136593 / 0.014526 (0.122068) | 0.145598 / 0.176557 (-0.030959) | 0.206545 / 0.737135 (-0.530590) | 0.150781 / 0.296338 (-0.145558) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.522345 / 0.215209 (0.307136) | 5.192092 / 2.077655 (3.114438) | 2.543182 / 1.504120 (1.039062) | 2.285212 / 1.541195 (0.744018) | 2.312803 / 1.468490 (0.844313) | 0.859334 / 4.584777 (-3.725443) | 4.620235 / 3.745712 (0.874523) | 3.964060 / 5.269862 (-1.305802) | 2.046347 / 4.565676 (-2.519330) | 0.105284 / 0.424275 (-0.318991) | 0.015051 / 0.007607 (0.007444) | 0.646530 / 0.226044 (0.420485) | 6.386396 / 2.268929 (4.117467) | 3.131833 / 55.444624 (-52.312791) | 2.761898 / 6.876477 (-4.114579) | 2.833216 / 2.142072 (0.691143) | 1.026024 / 4.805227 (-3.779204) | 0.206776 / 6.500664 (-6.293888) | 0.078845 / 0.075469 (0.003376) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.580851 / 1.841788 (-0.260937) | 17.826213 / 8.074308 (9.751905) | 16.929460 / 10.191392 (6.738068) | 0.232483 / 0.680424 (-0.447941) | 0.021123 / 0.534201 (-0.513078) | 0.522196 / 0.579283 (-0.057087) | 0.503495 / 0.434364 (0.069131) | 0.622777 / 0.540337 (0.082440) | 0.753272 / 1.386936 (-0.633664) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#3f9dfbd93707665132abc862b14bb9b50597b739 \"CML watermark\")\n" ]

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[ "Hi ! PyTorch may hang when calling `load_state_dict()` in a subprocess. To fix that, set the multiprocessing start method to \"spawn\". Since `datasets` uses `multiprocess`, you should do:\r\n\r\n```python\r\n# Required to avoid issues with pytorch (otherwise hangs during load_state_dict in multiprocessing)\r\nimport multiprocess.context as ctx\r\nctx._force_start_method('spawn')\r\n```\r\n\r\nAlso make sure to run your main code in `if __name__ == \"__main__\":` to avoid issues with python multiprocesing", "Thanks!", "@lhoestq Hello, I also encountered this problem but maybe with another reason. Here is my code:\r\n```python\r\ntokenizer = AutoTokenizer.from_pretrained(model_args.model_name_or_path, cache_dir=model_args.cache_dir, model_max_length=training_args.model_max_length)\r\ndata = load_dataset(\"json\", data_files=data_args.train_file, cache_dir=data_args.data_cache_dir)\r\ndef func(samples):\r\n # main operation\r\n for sentence_value in samples:\r\n sentence_ids = tokenizer.encode(sentence_value, add_special_tokens=False, max_length=tokenizer.model_max_length, truncation=True)\r\n ... ...\r\ntrain_data = data[\"train\"].shuffle().map(func, num_proc=os.cpu_count())\r\n```\r\nIt hangs after the progress reaches 100%. Could you help me point out the reason?", "@SkyAndCloud your issue doesn't seem related to the original post - could you open a new issue and provide more details ? (size of the dataset, number of cpus, how much time it took to run, `datasets` version)", "@lhoestq Hi, I just solved this problem. Because the input is extremely long and the tokenizer requests a large amount of memory, which leads to a OOM error and may eventually causes the hang. I didn't filter those too-long sentences because I thought `tokenizer` would stop once the length exceeds the `max_length`. However, it actually firstly complete the tokenization of entire sentence and then truncate it." ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008959 / 0.011353 (-0.002394) | 0.005804 / 0.011008 (-0.005204) | 0.112663 / 0.038508 (0.074155) | 0.043406 / 0.023109 (0.020297) | 0.348582 / 0.275898 (0.072684) | 0.382332 / 0.323480 (0.058852) | 0.007469 / 0.007986 (-0.000517) | 0.006211 / 0.004328 (0.001883) | 0.086576 / 0.004250 (0.082326) | 0.059223 / 0.037052 (0.022170) | 0.361051 / 0.258489 (0.102562) | 0.411359 / 0.293841 (0.117518) | 0.043640 / 0.128546 (-0.084906) | 0.014239 / 0.075646 (-0.061408) | 0.389729 / 0.419271 (-0.029542) | 0.072319 / 0.043533 (0.028786) | 0.351025 / 0.255139 (0.095886) | 0.371893 / 0.283200 (0.088693) | 0.125994 / 0.141683 (-0.015688) | 1.675249 / 1.452155 (0.223094) | 1.808740 / 1.492716 (0.316024) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.255172 / 0.018006 (0.237166) | 0.536003 / 0.000490 (0.535514) | 0.000365 / 0.000200 (0.000165) | 0.000070 / 0.000054 (0.000015) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031989 / 0.037411 (-0.005423) | 0.126854 / 0.014526 (0.112328) | 0.142458 / 0.176557 (-0.034098) | 0.207821 / 0.737135 (-0.529314) | 0.145610 / 0.296338 (-0.150728) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.468924 / 0.215209 (0.253715) | 4.696677 / 2.077655 (2.619023) | 2.183133 / 1.504120 (0.679013) | 1.994219 / 1.541195 (0.453024) | 2.101375 / 1.468490 (0.632885) | 0.827168 / 4.584777 (-3.757609) | 4.710167 / 3.745712 (0.964455) | 2.377062 / 5.269862 (-2.892800) | 1.712245 / 4.565676 (-2.853431) | 0.100620 / 0.424275 (-0.323655) | 0.014302 / 0.007607 (0.006695) | 0.590813 / 0.226044 (0.364769) | 5.871991 / 2.268929 (3.603063) | 2.722229 / 55.444624 (-52.722395) | 2.323585 / 6.876477 (-4.552892) | 2.503289 / 2.142072 (0.361217) | 0.983644 / 4.805227 (-3.821583) | 0.193942 / 6.500664 (-6.306722) | 0.076493 / 0.075469 (0.001024) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.463107 / 1.841788 (-0.378681) | 17.876918 / 8.074308 (9.802610) | 16.755740 / 10.191392 (6.564348) | 0.167556 / 0.680424 (-0.512868) | 0.020514 / 0.534201 (-0.513687) | 0.508385 / 0.579283 (-0.070898) | 0.505873 / 0.434364 (0.071509) | 0.603630 / 0.540337 (0.063293) | 0.708856 / 1.386936 (-0.678080) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008504 / 0.011353 (-0.002849) | 0.005894 / 0.011008 (-0.005114) | 0.085523 / 0.038508 (0.047015) | 0.038780 / 0.023109 (0.015671) | 0.402869 / 0.275898 (0.126971) | 0.423819 / 0.323480 (0.100339) | 0.006427 / 0.007986 (-0.001559) | 0.004598 / 0.004328 (0.000269) | 0.079807 / 0.004250 (0.075556) | 0.050852 / 0.037052 (0.013799) | 0.403232 / 0.258489 (0.144743) | 0.452489 / 0.293841 (0.158648) | 0.041501 / 0.128546 (-0.087045) | 0.014996 / 0.075646 (-0.060650) | 0.101548 / 0.419271 (-0.317724) | 0.056993 / 0.043533 (0.013461) | 0.403153 / 0.255139 (0.148014) | 0.424587 / 0.283200 (0.141388) | 0.114507 / 0.141683 (-0.027176) | 1.707098 / 1.452155 (0.254943) | 1.799008 / 1.492716 (0.306291) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.288003 / 0.018006 (0.269996) | 0.496526 / 0.000490 (0.496036) | 0.010923 / 0.000200 (0.010723) | 0.000159 / 0.000054 (0.000105) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.033948 / 0.037411 (-0.003463) | 0.142343 / 0.014526 (0.127817) | 0.143862 / 0.176557 (-0.032695) | 0.202655 / 0.737135 (-0.534480) | 0.151177 / 0.296338 (-0.145162) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.508003 / 0.215209 (0.292794) | 5.320394 / 2.077655 (3.242740) | 2.409854 / 1.504120 (0.905734) | 2.190656 / 1.541195 (0.649462) | 2.272171 / 1.468490 (0.803681) | 0.809492 / 4.584777 (-3.775285) | 4.554412 / 3.745712 (0.808699) | 4.413643 / 5.269862 (-0.856218) | 2.374034 / 4.565676 (-2.191642) | 0.099458 / 0.424275 (-0.324817) | 0.014553 / 0.007607 (0.006946) | 0.613916 / 0.226044 (0.387871) | 6.121430 / 2.268929 (3.852502) | 2.945661 / 55.444624 (-52.498964) | 2.595247 / 6.876477 (-4.281230) | 2.734047 / 2.142072 (0.591975) | 0.952217 / 4.805227 (-3.853010) | 0.196933 / 6.500664 (-6.303731) | 0.073391 / 0.075469 (-0.002078) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.475666 / 1.841788 (-0.366122) | 18.564281 / 8.074308 (10.489973) | 16.865259 / 10.191392 (6.673867) | 0.166494 / 0.680424 (-0.513930) | 0.020655 / 0.534201 (-0.513546) | 0.495120 / 0.579283 (-0.084163) | 0.502602 / 0.434364 (0.068238) | 0.622448 / 0.540337 (0.082110) | 0.721036 / 1.386936 (-0.665900) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#40c204c777793d64e8bb8ce357e9c07b3b303e41 \"CML watermark\")\n", "Whoops mario you're off this week sorry. I'm taking the liberty to merge this one", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009079 / 0.011353 (-0.002274) | 0.005960 / 0.011008 (-0.005049) | 0.116530 / 0.038508 (0.078022) | 0.046649 / 0.023109 (0.023540) | 0.391906 / 0.275898 (0.116008) | 0.438892 / 0.323480 (0.115412) | 0.007134 / 0.007986 (-0.000851) | 0.004997 / 0.004328 (0.000668) | 0.085947 / 0.004250 (0.081697) | 0.059814 / 0.037052 (0.022762) | 0.396423 / 0.258489 (0.137934) | 0.455941 / 0.293841 (0.162100) | 0.042535 / 0.128546 (-0.086011) | 0.014667 / 0.075646 (-0.060980) | 0.402023 / 0.419271 (-0.017249) | 0.060381 / 0.043533 (0.016848) | 0.393829 / 0.255139 (0.138690) | 0.426557 / 0.283200 (0.143358) | 0.131519 / 0.141683 (-0.010163) | 1.758098 / 1.452155 (0.305943) | 1.848194 / 1.492716 (0.355478) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.236405 / 0.018006 (0.218399) | 0.611442 / 0.000490 (0.610952) | 0.005143 / 0.000200 (0.004943) | 0.000146 / 0.000054 (0.000092) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.034317 / 0.037411 (-0.003094) | 0.182485 / 0.014526 (0.167959) | 0.183149 / 0.176557 (0.006592) | 0.293592 / 0.737135 (-0.443543) | 0.197137 / 0.296338 (-0.099202) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.475690 / 0.215209 (0.260481) | 4.757344 / 2.077655 (2.679690) | 2.184079 / 1.504120 (0.679959) | 1.956599 / 1.541195 (0.415404) | 2.043041 / 1.468490 (0.574551) | 0.817602 / 4.584777 (-3.767175) | 6.432267 / 3.745712 (2.686555) | 5.999402 / 5.269862 (0.729541) | 3.095970 / 4.565676 (-1.469706) | 0.181589 / 0.424275 (-0.242686) | 0.023286 / 0.007607 (0.015679) | 1.090318 / 0.226044 (0.864274) | 7.919330 / 2.268929 (5.650401) | 2.702821 / 55.444624 (-52.741804) | 2.375442 / 6.876477 (-4.501034) | 2.543075 / 2.142072 (0.401003) | 1.011763 / 4.805227 (-3.793464) | 0.203676 / 6.500664 (-6.296988) | 0.080075 / 0.075469 (0.004606) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.875420 / 1.841788 (0.033632) | 23.059278 / 8.074308 (14.984970) | 19.250807 / 10.191392 (9.059415) | 0.323678 / 0.680424 (-0.356746) | 0.028682 / 0.534201 (-0.505519) | 0.698231 / 0.579283 (0.118948) | 0.668129 / 0.434364 (0.233765) | 0.831218 / 0.540337 (0.290880) | 0.941191 / 1.386936 (-0.445745) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.013122 / 0.011353 (0.001769) | 0.006123 / 0.011008 (-0.004886) | 0.090493 / 0.038508 (0.051985) | 0.070660 / 0.023109 (0.047551) | 0.413486 / 0.275898 (0.137588) | 0.450364 / 0.323480 (0.126884) | 0.010288 / 0.007986 (0.002302) | 0.006590 / 0.004328 (0.002261) | 0.087174 / 0.004250 (0.082923) | 0.077304 / 0.037052 (0.040252) | 0.428480 / 0.258489 (0.169991) | 0.459872 / 0.293841 (0.166032) | 0.060477 / 0.128546 (-0.068069) | 0.014859 / 0.075646 (-0.060788) | 0.103915 / 0.419271 (-0.315356) | 0.087466 / 0.043533 (0.043933) | 0.418644 / 0.255139 (0.163505) | 0.433409 / 0.283200 (0.150209) | 0.166716 / 0.141683 (0.025033) | 1.712068 / 1.452155 (0.259914) | 1.827869 / 1.492716 (0.335153) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.372491 / 0.018006 (0.354484) | 0.493426 / 0.000490 (0.492937) | 0.005497 / 0.000200 (0.005297) | 0.000129 / 0.000054 (0.000074) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.036531 / 0.037411 (-0.000880) | 0.142152 / 0.014526 (0.127626) | 0.148183 / 0.176557 (-0.028373) | 0.212918 / 0.737135 (-0.524217) | 0.154092 / 0.296338 (-0.142246) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.551733 / 0.215209 (0.336524) | 5.421498 / 2.077655 (3.343843) | 2.418848 / 1.504120 (0.914728) | 2.213185 / 1.541195 (0.671991) | 2.294881 / 1.468490 (0.826391) | 0.827031 / 4.584777 (-3.757746) | 6.365622 / 3.745712 (2.619910) | 4.927996 / 5.269862 (-0.341866) | 2.756133 / 4.565676 (-1.809544) | 0.101474 / 0.424275 (-0.322801) | 0.014523 / 0.007607 (0.006916) | 0.619082 / 0.226044 (0.393037) | 6.200132 / 2.268929 (3.931204) | 3.015590 / 55.444624 (-52.429034) | 2.711181 / 6.876477 (-4.165296) | 2.857157 / 2.142072 (0.715084) | 0.993329 / 4.805227 (-3.811898) | 0.203364 / 6.500664 (-6.297301) | 0.079167 / 0.075469 (0.003698) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.709881 / 1.841788 (-0.131907) | 24.867536 / 8.074308 (16.793228) | 21.755361 / 10.191392 (11.563969) | 0.295837 / 0.680424 (-0.384586) | 0.031934 / 0.534201 (-0.502267) | 0.709994 / 0.579283 (0.130711) | 0.779656 / 0.434364 (0.345293) | 0.780669 / 0.540337 (0.240331) | 0.712808 / 1.386936 (-0.674128) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#cf4a1951bdca7175adac9c8b85550e89dcceb6fa \"CML watermark\")\n" ]

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[ "Hi! This looks like an Arrow bug, but it can be avoided by reducing the `writer_batch_size`.\r\n\r\n(`ds = ds.map(get_text_caption, writer_batch_size=100)` in Colab runs without issues)\r\n" ]

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[ "Hi! \r\n\r\nYou can use `set_transform`/`with_transform` to define a custom decoding for audio formats not supported by `soundfile`:\r\n```python\r\naudio_dataset_amr = Dataset.from_dict({\"audio\": [\"audio_samples/audio.amr\"]})\r\n\r\ndef decode_audio(batch):\r\n batch[\"audio\"] = [read_ffmpeg(audio_path) for audio_path in batch[\"audio\"]]\r\n return batch\r\n\r\naudio_dataset_amr.set_transform(decode_amr) \r\n```\r\n\r\nSupporting multiple backends is more work to maintain, but we could consider this if we get more requests such as this one.", "Could it be put somewhere as an example tip or something?", "Considering the number of times a custom decoding transform has been suggested as a solution, an example in the [docs](https://huggingface.co/docs/datasets/process#format-transform) would be nice.\r\n\r\ncc @stevhliu " ]

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[ "It looks like an issue with your installation of scipy, can you try reinstalling it ?", "Sorry for the late reply, but that worked @lhoestq . Thanks for the assist." ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007490 / 0.011353 (-0.003862) | 0.004957 / 0.011008 (-0.006051) | 0.096952 / 0.038508 (0.058444) | 0.034125 / 0.023109 (0.011016) | 0.301926 / 0.275898 (0.026028) | 0.330538 / 0.323480 (0.007058) | 0.005999 / 0.007986 (-0.001987) | 0.003948 / 0.004328 (-0.000380) | 0.073024 / 0.004250 (0.068773) | 0.050020 / 0.037052 (0.012967) | 0.299987 / 0.258489 (0.041498) | 0.336077 / 0.293841 (0.042237) | 0.035781 / 0.128546 (-0.092765) | 0.012159 / 0.075646 (-0.063487) | 0.333311 / 0.419271 (-0.085960) | 0.059925 / 0.043533 (0.016392) | 0.297772 / 0.255139 (0.042633) | 0.313447 / 0.283200 (0.030247) | 0.100991 / 0.141683 (-0.040692) | 1.472182 / 1.452155 (0.020027) | 1.553010 / 1.492716 (0.060294) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.214222 / 0.018006 (0.196216) | 0.441579 / 0.000490 (0.441090) | 0.001030 / 0.000200 (0.000830) | 0.000194 / 0.000054 (0.000140) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.026149 / 0.037411 (-0.011262) | 0.107324 / 0.014526 (0.092798) | 0.113390 / 0.176557 (-0.063167) | 0.170282 / 0.737135 (-0.566854) | 0.120601 / 0.296338 (-0.175737) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.411795 / 0.215209 (0.196585) | 4.091412 / 2.077655 (2.013757) | 1.819597 / 1.504120 (0.315477) | 1.623413 / 1.541195 (0.082218) | 1.658959 / 1.468490 (0.190469) | 0.697671 / 4.584777 (-3.887106) | 3.868855 / 3.745712 (0.123143) | 3.220448 / 5.269862 (-2.049414) | 1.796472 / 4.565676 (-2.769204) | 0.085817 / 0.424275 (-0.338458) | 0.012422 / 0.007607 (0.004815) | 0.520302 / 0.226044 (0.294258) | 5.062477 / 2.268929 (2.793548) | 2.275065 / 55.444624 (-53.169560) | 1.936717 / 6.876477 (-4.939759) | 2.069924 / 2.142072 (-0.072148) | 0.838964 / 4.805227 (-3.966264) | 0.170632 / 6.500664 (-6.330032) | 0.066011 / 0.075469 (-0.009458) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.190673 / 1.841788 (-0.651114) | 14.679478 / 8.074308 (6.605169) | 14.099743 / 10.191392 (3.908351) | 0.142556 / 0.680424 (-0.537868) | 0.017601 / 0.534201 (-0.516600) | 0.421301 / 0.579283 (-0.157982) | 0.418035 / 0.434364 (-0.016329) | 0.503799 / 0.540337 (-0.036539) | 0.588809 / 1.386936 (-0.798127) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007556 / 0.011353 (-0.003797) | 0.005283 / 0.011008 (-0.005725) | 0.075616 / 0.038508 (0.037107) | 0.034127 / 0.023109 (0.011018) | 0.345145 / 0.275898 (0.069247) | 0.377490 / 0.323480 (0.054010) | 0.006532 / 0.007986 (-0.001454) | 0.004145 / 0.004328 (-0.000183) | 0.074724 / 0.004250 (0.070473) | 0.048658 / 0.037052 (0.011605) | 0.339989 / 0.258489 (0.081500) | 0.398240 / 0.293841 (0.104399) | 0.037433 / 0.128546 (-0.091114) | 0.012410 / 0.075646 (-0.063237) | 0.088110 / 0.419271 (-0.331162) | 0.050635 / 0.043533 (0.007103) | 0.351878 / 0.255139 (0.096739) | 0.365707 / 0.283200 (0.082508) | 0.104342 / 0.141683 (-0.037341) | 1.438009 / 1.452155 (-0.014145) | 1.533616 / 1.492716 (0.040900) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.225570 / 0.018006 (0.207563) | 0.442482 / 0.000490 (0.441992) | 0.000402 / 0.000200 (0.000202) | 0.000063 / 0.000054 (0.000009) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.030348 / 0.037411 (-0.007063) | 0.111402 / 0.014526 (0.096877) | 0.123365 / 0.176557 (-0.053192) | 0.175604 / 0.737135 (-0.561531) | 0.128458 / 0.296338 (-0.167881) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.426054 / 0.215209 (0.210845) | 4.255050 / 2.077655 (2.177395) | 2.039568 / 1.504120 (0.535448) | 1.856842 / 1.541195 (0.315647) | 1.923792 / 1.468490 (0.455301) | 0.701023 / 4.584777 (-3.883754) | 3.746632 / 3.745712 (0.000920) | 2.055563 / 5.269862 (-3.214298) | 1.308068 / 4.565676 (-3.257608) | 0.085524 / 0.424275 (-0.338751) | 0.012103 / 0.007607 (0.004496) | 0.522929 / 0.226044 (0.296885) | 5.258133 / 2.268929 (2.989205) | 2.458440 / 55.444624 (-52.986185) | 2.141681 / 6.876477 (-4.734796) | 2.258667 / 2.142072 (0.116595) | 0.842533 / 4.805227 (-3.962694) | 0.168089 / 6.500664 (-6.332575) | 0.063707 / 0.075469 (-0.011762) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.312252 / 1.841788 (-0.529536) | 14.939185 / 8.074308 (6.864877) | 14.479845 / 10.191392 (4.288453) | 0.162557 / 0.680424 (-0.517867) | 0.017660 / 0.534201 (-0.516541) | 0.423261 / 0.579283 (-0.156023) | 0.417693 / 0.434364 (-0.016671) | 0.495440 / 0.540337 (-0.044897) | 0.589932 / 1.386936 (-0.797004) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#4e3c86574155961097b367d5cddda5bd13c42b09 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008796 / 0.011353 (-0.002557) | 0.005828 / 0.011008 (-0.005180) | 0.118629 / 0.038508 (0.080121) | 0.042435 / 0.023109 (0.019326) | 0.383780 / 0.275898 (0.107882) | 0.420344 / 0.323480 (0.096864) | 0.006855 / 0.007986 (-0.001130) | 0.006290 / 0.004328 (0.001962) | 0.087160 / 0.004250 (0.082910) | 0.057568 / 0.037052 (0.020516) | 0.378761 / 0.258489 (0.120272) | 0.426496 / 0.293841 (0.132655) | 0.041772 / 0.128546 (-0.086774) | 0.014226 / 0.075646 (-0.061420) | 0.400097 / 0.419271 (-0.019174) | 0.060402 / 0.043533 (0.016870) | 0.381955 / 0.255139 (0.126816) | 0.399110 / 0.283200 (0.115911) | 0.124608 / 0.141683 (-0.017075) | 1.737856 / 1.452155 (0.285702) | 1.829034 / 1.492716 (0.336318) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.219941 / 0.018006 (0.201934) | 0.497156 / 0.000490 (0.496666) | 0.005094 / 0.000200 (0.004894) | 0.000097 / 0.000054 (0.000043) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032144 / 0.037411 (-0.005268) | 0.131782 / 0.014526 (0.117256) | 0.141543 / 0.176557 (-0.035014) | 0.211419 / 0.737135 (-0.525716) | 0.147338 / 0.296338 (-0.149001) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.478345 / 0.215209 (0.263136) | 4.749506 / 2.077655 (2.671851) | 2.195794 / 1.504120 (0.691674) | 1.978126 / 1.541195 (0.436932) | 2.059941 / 1.468490 (0.591451) | 0.821959 / 4.584777 (-3.762818) | 5.737479 / 3.745712 (1.991767) | 2.507125 / 5.269862 (-2.762737) | 2.051772 / 4.565676 (-2.513905) | 0.100619 / 0.424275 (-0.323656) | 0.014437 / 0.007607 (0.006830) | 0.599484 / 0.226044 (0.373440) | 5.977579 / 2.268929 (3.708651) | 2.708143 / 55.444624 (-52.736482) | 2.320279 / 6.876477 (-4.556198) | 2.510172 / 2.142072 (0.368100) | 1.006279 / 4.805227 (-3.798948) | 0.199812 / 6.500664 (-6.300853) | 0.077967 / 0.075469 (0.002498) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.510171 / 1.841788 (-0.331616) | 21.099446 / 8.074308 (13.025138) | 17.634225 / 10.191392 (7.442833) | 0.223506 / 0.680424 (-0.456918) | 0.023845 / 0.534201 (-0.510356) | 0.613489 / 0.579283 (0.034206) | 0.685735 / 0.434364 (0.251371) | 0.652485 / 0.540337 (0.112148) | 0.734756 / 1.386936 (-0.652180) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008444 / 0.011353 (-0.002909) | 0.005789 / 0.011008 (-0.005220) | 0.088297 / 0.038508 (0.049789) | 0.040847 / 0.023109 (0.017737) | 0.411748 / 0.275898 (0.135850) | 0.452320 / 0.323480 (0.128841) | 0.006689 / 0.007986 (-0.001296) | 0.006029 / 0.004328 (0.001701) | 0.086080 / 0.004250 (0.081830) | 0.053310 / 0.037052 (0.016257) | 0.402568 / 0.258489 (0.144079) | 0.459047 / 0.293841 (0.165206) | 0.041203 / 0.128546 (-0.087343) | 0.014216 / 0.075646 (-0.061431) | 0.102729 / 0.419271 (-0.316543) | 0.057170 / 0.043533 (0.013637) | 0.407137 / 0.255139 (0.151998) | 0.429703 / 0.283200 (0.146503) | 0.123528 / 0.141683 (-0.018155) | 1.690026 / 1.452155 (0.237872) | 1.797793 / 1.492716 (0.305077) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.264581 / 0.018006 (0.246575) | 0.498981 / 0.000490 (0.498492) | 0.000462 / 0.000200 (0.000262) | 0.000096 / 0.000054 (0.000041) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.034613 / 0.037411 (-0.002798) | 0.136596 / 0.014526 (0.122070) | 0.142183 / 0.176557 (-0.034374) | 0.201816 / 0.737135 (-0.535320) | 0.148843 / 0.296338 (-0.147496) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.506708 / 0.215209 (0.291499) | 5.042829 / 2.077655 (2.965175) | 2.448414 / 1.504120 (0.944295) | 2.213251 / 1.541195 (0.672056) | 2.255805 / 1.468490 (0.787315) | 0.829929 / 4.584777 (-3.754848) | 5.145717 / 3.745712 (1.400004) | 2.493947 / 5.269862 (-2.775915) | 1.676171 / 4.565676 (-2.889506) | 0.102097 / 0.424275 (-0.322178) | 0.014545 / 0.007607 (0.006938) | 0.635473 / 0.226044 (0.409429) | 6.306767 / 2.268929 (4.037839) | 3.050284 / 55.444624 (-52.394341) | 2.653175 / 6.876477 (-4.223302) | 2.850569 / 2.142072 (0.708496) | 1.355280 / 4.805227 (-3.449947) | 0.248112 / 6.500664 (-6.252552) | 0.091993 / 0.075469 (0.016524) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.837509 / 1.841788 (-0.004279) | 21.268838 / 8.074308 (13.194530) | 17.338053 / 10.191392 (7.146660) | 0.232263 / 0.680424 (-0.448161) | 0.029093 / 0.534201 (-0.505108) | 0.651056 / 0.579283 (0.071773) | 0.617623 / 0.434364 (0.183259) | 0.773921 / 0.540337 (0.233584) | 0.705118 / 1.386936 (-0.681818) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#35846fd54fa16aa72ff344d15c98b5e08c5effe0 \"CML watermark\")\n" ]

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[ "Hi ! Passing `data_files=\"path/test.json\"` is equivalent to `data_files={\"train\": [\"path/test.json\"]}`, that's why you end up with a train split. If you don't pass `data_files=`, then split names are inferred from the data files names" ]

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[ "Note:\r\nI listed the datasets and grepped around to find what appears to be an alternative source for this:\r\n\r\nraw_datasets = load_dataset(\"espejelomar/code_search_net_python_10000_examples\", \"python\")", "Thanks for reporting, @jason-brian-anderson.\r\n\r\nYes, this is a known issue: the [CodeSearchNet](https://github.com/github/CodeSearchNet) repo has been archived (Apr 11, 2023) and their source data files are no longer accessible in their S3: e.g. https://s3.amazonaws.com/code-search-net/CodeSearchNet/v2/python.zip gives 403 Forbidden error. See:\r\n- https://huggingface.co/datasets/code_search_net/discussions/3\r\n\r\nWe have contacted one of the authors of the dataset to find a solution. I'll keep you informed.\r\n\r\nCC: @hamelsmu", "cc: @julianeagu", "This issue is fixed because we are hosting the CodeSearchNet data files in the Hugging Face Hub. See: https://huggingface.co/datasets/code_search_net/discussions/7", "I learned that @mallamanis has uploaded the dataset [here as well](https://zenodo.org/record/7908468) ", "Thanks @hamelsmu for the Zenodo link. I am adding it to the dataset card on the Hugging Face Hub, so that the community knows about this \"official\" source data. I guess this link is not well known, because some community members already hosted an \"unofficial\" version of the data on Zenodo as well: https://zenodo.org/record/7857872\r\n\r\n" ]

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[ "We just fixed this on `main` and will do a new release soon :)" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.010336 / 0.011353 (-0.001017) | 0.007085 / 0.011008 (-0.003924) | 0.135577 / 0.038508 (0.097069) | 0.038301 / 0.023109 (0.015192) | 0.427919 / 0.275898 (0.152021) | 0.461451 / 0.323480 (0.137971) | 0.008929 / 0.007986 (0.000944) | 0.005260 / 0.004328 (0.000931) | 0.103481 / 0.004250 (0.099231) | 0.054885 / 0.037052 (0.017833) | 0.434956 / 0.258489 (0.176467) | 0.466915 / 0.293841 (0.173074) | 0.052403 / 0.128546 (-0.076144) | 0.021128 / 0.075646 (-0.054518) | 0.466847 / 0.419271 (0.047576) | 0.085096 / 0.043533 (0.041563) | 0.439935 / 0.255139 (0.184796) | 0.453613 / 0.283200 (0.170413) | 0.123913 / 0.141683 (-0.017769) | 1.930114 / 1.452155 (0.477959) | 2.052083 / 1.492716 (0.559366) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.280612 / 0.018006 (0.262606) | 0.583937 / 0.000490 (0.583447) | 0.004542 / 0.000200 (0.004342) | 0.000117 / 0.000054 (0.000063) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.035901 / 0.037411 (-0.001510) | 0.160357 / 0.014526 (0.145831) | 0.141661 / 0.176557 (-0.034896) | 0.234915 / 0.737135 (-0.502220) | 0.164110 / 0.296338 (-0.132228) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.659901 / 0.215209 (0.444692) | 6.529102 / 2.077655 (4.451447) | 2.635324 / 1.504120 (1.131204) | 2.275777 / 1.541195 (0.734583) | 2.343205 / 1.468490 (0.874715) | 1.241310 / 4.584777 (-3.343467) | 5.683784 / 3.745712 (1.938072) | 3.377162 / 5.269862 (-1.892700) | 2.176404 / 4.565676 (-2.389273) | 0.144303 / 0.424275 (-0.279972) | 0.016352 / 0.007607 (0.008745) | 0.817383 / 0.226044 (0.591339) | 8.148356 / 2.268929 (5.879428) | 3.489277 / 55.444624 (-51.955347) | 2.848086 / 6.876477 (-4.028391) | 2.973304 / 2.142072 (0.831232) | 1.517821 / 4.805227 (-3.287407) | 0.278794 / 6.500664 (-6.221870) | 0.096385 / 0.075469 (0.020916) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.631693 / 1.841788 (-0.210095) | 19.564716 / 8.074308 (11.490408) | 23.583081 / 10.191392 (13.391689) | 0.252363 / 0.680424 (-0.428061) | 0.027644 / 0.534201 (-0.506557) | 0.579634 / 0.579283 (0.000351) | 0.645702 / 0.434364 (0.211338) | 0.667302 / 0.540337 (0.126965) | 0.766425 / 1.386936 (-0.620511) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.011186 / 0.011353 (-0.000167) | 0.007327 / 0.011008 (-0.003681) | 0.105441 / 0.038508 (0.066933) | 0.040293 / 0.023109 (0.017184) | 0.480557 / 0.275898 (0.204659) | 0.522049 / 0.323480 (0.198569) | 0.007779 / 0.007986 (-0.000207) | 0.007338 / 0.004328 (0.003009) | 0.104744 / 0.004250 (0.100494) | 0.059463 / 0.037052 (0.022411) | 0.494055 / 0.258489 (0.235566) | 0.534340 / 0.293841 (0.240499) | 0.062800 / 0.128546 (-0.065746) | 0.020687 / 0.075646 (-0.054959) | 0.135833 / 0.419271 (-0.283439) | 0.087472 / 0.043533 (0.043939) | 0.465019 / 0.255139 (0.209880) | 0.526713 / 0.283200 (0.243513) | 0.131424 / 0.141683 (-0.010259) | 1.884759 / 1.452155 (0.432605) | 2.015817 / 1.492716 (0.523101) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.237032 / 0.018006 (0.219026) | 0.605209 / 0.000490 (0.604719) | 0.006653 / 0.000200 (0.006453) | 0.000264 / 0.000054 (0.000210) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.034982 / 0.037411 (-0.002430) | 0.141409 / 0.014526 (0.126883) | 0.151635 / 0.176557 (-0.024922) | 0.217298 / 0.737135 (-0.519837) | 0.171945 / 0.296338 (-0.124393) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.678596 / 0.215209 (0.463387) | 6.802432 / 2.077655 (4.724777) | 3.021617 / 1.504120 (1.517497) | 2.722508 / 1.541195 (1.181313) | 2.728194 / 1.468490 (1.259704) | 1.245863 / 4.584777 (-3.338914) | 5.762676 / 3.745712 (2.016963) | 5.497855 / 5.269862 (0.227994) | 2.855764 / 4.565676 (-1.709912) | 0.157359 / 0.424275 (-0.266916) | 0.015562 / 0.007607 (0.007955) | 0.865559 / 0.226044 (0.639515) | 8.553052 / 2.268929 (6.284123) | 3.905544 / 55.444624 (-51.539081) | 3.272528 / 6.876477 (-3.603949) | 3.399481 / 2.142072 (1.257408) | 1.540155 / 4.805227 (-3.265072) | 0.275871 / 6.500664 (-6.224793) | 0.092346 / 0.075469 (0.016877) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.753646 / 1.841788 (-0.088142) | 20.074050 / 8.074308 (11.999742) | 23.920391 / 10.191392 (13.728999) | 0.257161 / 0.680424 (-0.423263) | 0.027805 / 0.534201 (-0.506396) | 0.565605 / 0.579283 (-0.013678) | 0.643277 / 0.434364 (0.208914) | 0.633504 / 0.540337 (0.093167) | 0.754317 / 1.386936 (-0.632619) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#2d34c7968ea1a3fe7d4fa7cdf23673e0354f69ac \"CML watermark\")\n" ]

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[ "Thanks for reporting, @v-yunbin.\r\n\r\nCould you please give more details, the steps to reproduce the bug, the complete error back trace and the environment information (`datasets-cli env`)?", "this is a detail error info from transformers：\r\n```\r\nTraceback (most recent call last):\r\n File \"finetune.py\", line 177, in <module>\r\n whisper_finetune(traindir,devdir,outdir)\r\n File \"finetune.py\", line 161, in whisper_finetune\r\n trainer = Seq2SeqTrainer(\r\n File \"/home/ybZhang/miniconda3/envs/whister/lib/python3.8/site-packages/transformers/trainer_seq2seq.py\", line 56, in __init__\r\n super().__init__(\r\n File \"/home/ybZhang/miniconda3/envs/whister/lib/python3.8/site-packages/transformers/trainer.py\", line 567, in __init__\r\n raise ValueError(\r\nValueError: The train_dataset does not implement __len__, max_steps has to be specified. The number of steps needs to be known in advance for the learning rate scheduler.\r\n```\r\n", "How did you create `train_dataset`? The `datasets` library does not appear in your stack trace.\r\n\r\nWe need more information in order to reproduce the issue...", "```\r\ndef asr_dataset(traindir,devdir):\r\n we_voice = IterableDatasetDict()\r\n #we_voice[\"train\"] = load_from_disk(traindir,streaming=True)\r\n #we_voice[\"test\"]= load_from_disk(devdir,streaming=True)\r\n we_voice[\"train\"] = load_dataset(\"csv\",data_files=os.path.join(traindir,\"train.csv\"),split=\"train\",streaming=True)\r\n #print(load_dataset(\"csv\",data_files=os.path.join(traindir,\"train.csv\"),split=\"train\"))\r\n we_voice[\"test\"] = load_dataset(\"csv\",data_files=os.path.join(devdir,\"dev.csv\"), split=\"train\",streaming=True)\r\n we_voice = we_voice.remove_columns([\"id\"])\r\n we_voice = we_voice.cast_column(\"audio\", Audio(sampling_rate=16000))\r\n return we_voice\r\n\r\n```", "As you are using iterable datasets (`streaming=True`), their length is not defined.\r\n\r\nYou should:\r\n- Either use non-iterable datasets, which have a defined length: use `DatasetDict` and not passing `streaming=True`\r\n- Or pass `args.max_steps` to the `Trainer`", "I don't know how to give a reasonable args.max_steps...........................", "Then you should not use streaming.", "@albertvillanova I think @v-yunbin, myself, and others might be slightly confused about max_steps and how it differs from num_train_epochs.", "@lkurlandski A **step** is referring to optimizer's update after back propagation, and it's associated with a batch of data. For example, if a dataset contains 64 examples and you have an overall batch size of 4, then an epoch will have 64/4=16 batches. Therefore, in one epoch, you will have 16 optimizer **steps**." ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.009262 / 0.011353 (-0.002091) | 0.006157 / 0.011008 (-0.004851) | 0.125960 / 0.038508 (0.087451) | 0.036213 / 0.023109 (0.013104) | 0.399331 / 0.275898 (0.123433) | 0.453597 / 0.323480 (0.130117) | 0.006990 / 0.007986 (-0.000995) | 0.007320 / 0.004328 (0.002991) | 0.100321 / 0.004250 (0.096070) | 0.048870 / 0.037052 (0.011818) | 0.396284 / 0.258489 (0.137795) | 0.475619 / 0.293841 (0.181778) | 0.052329 / 0.128546 (-0.076217) | 0.019564 / 0.075646 (-0.056083) | 0.430942 / 0.419271 (0.011670) | 0.063224 / 0.043533 (0.019692) | 0.391717 / 0.255139 (0.136578) | 0.448342 / 0.283200 (0.165142) | 0.114055 / 0.141683 (-0.027628) | 1.793204 / 1.452155 (0.341049) | 1.895151 / 1.492716 (0.402435) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.283699 / 0.018006 (0.265693) | 0.597194 / 0.000490 (0.596704) | 0.007143 / 0.000200 (0.006944) | 0.000602 / 0.000054 (0.000548) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.034761 / 0.037411 (-0.002651) | 0.124555 / 0.014526 (0.110030) | 0.149126 / 0.176557 (-0.027430) | 0.220335 / 0.737135 (-0.516801) | 0.153109 / 0.296338 (-0.143229) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.620210 / 0.215209 (0.405001) | 6.229937 / 2.077655 (4.152282) | 2.615203 / 1.504120 (1.111083) | 2.239337 / 1.541195 (0.698143) | 2.262138 / 1.468490 (0.793648) | 1.196498 / 4.584777 (-3.388279) | 5.609932 / 3.745712 (1.864220) | 3.031347 / 5.269862 (-2.238515) | 2.025530 / 4.565676 (-2.540146) | 0.139828 / 0.424275 (-0.284447) | 0.015476 / 0.007607 (0.007869) | 0.768964 / 0.226044 (0.542920) | 7.728677 / 2.268929 (5.459748) | 3.336407 / 55.444624 (-52.108217) | 2.700055 / 6.876477 (-4.176422) | 2.765223 / 2.142072 (0.623151) | 1.409073 / 4.805227 (-3.396155) | 0.246849 / 6.500664 (-6.253815) | 0.081231 / 0.075469 (0.005762) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.593836 / 1.841788 (-0.247952) | 18.020525 / 8.074308 (9.946216) | 21.766822 / 10.191392 (11.575430) | 0.258615 / 0.680424 (-0.421809) | 0.026895 / 0.534201 (-0.507306) | 0.529823 / 0.579283 (-0.049460) | 0.623470 / 0.434364 (0.189106) | 0.628171 / 0.540337 (0.087833) | 0.745249 / 1.386936 (-0.641687) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008624 / 0.011353 (-0.002729) | 0.006317 / 0.011008 (-0.004691) | 0.097315 / 0.038508 (0.058807) | 0.035217 / 0.023109 (0.012108) | 0.440197 / 0.275898 (0.164299) | 0.473863 / 0.323480 (0.150383) | 0.006722 / 0.007986 (-0.001264) | 0.006444 / 0.004328 (0.002116) | 0.102056 / 0.004250 (0.097806) | 0.047142 / 0.037052 (0.010089) | 0.452476 / 0.258489 (0.193986) | 0.487619 / 0.293841 (0.193778) | 0.052456 / 0.128546 (-0.076090) | 0.018735 / 0.075646 (-0.056911) | 0.114656 / 0.419271 (-0.304616) | 0.062577 / 0.043533 (0.019044) | 0.444471 / 0.255139 (0.189332) | 0.494264 / 0.283200 (0.211065) | 0.117112 / 0.141683 (-0.024571) | 1.848965 / 1.452155 (0.396810) | 1.984008 / 1.492716 (0.491292) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.290494 / 0.018006 (0.272488) | 0.588415 / 0.000490 (0.587925) | 0.000459 / 0.000200 (0.000259) | 0.000080 / 0.000054 (0.000026) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032873 / 0.037411 (-0.004538) | 0.131139 / 0.014526 (0.116614) | 0.140268 / 0.176557 (-0.036289) | 0.204561 / 0.737135 (-0.532574) | 0.147443 / 0.296338 (-0.148895) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.636899 / 0.215209 (0.421690) | 6.236139 / 2.077655 (4.158484) | 2.801468 / 1.504120 (1.297348) | 2.398808 / 1.541195 (0.857613) | 2.493150 / 1.468490 (1.024659) | 1.228845 / 4.584777 (-3.355932) | 5.675874 / 3.745712 (1.930162) | 3.084939 / 5.269862 (-2.184922) | 2.061310 / 4.565676 (-2.504367) | 0.142285 / 0.424275 (-0.281990) | 0.014972 / 0.007607 (0.007365) | 0.786599 / 0.226044 (0.560555) | 7.876036 / 2.268929 (5.607107) | 3.476136 / 55.444624 (-51.968489) | 2.847922 / 6.876477 (-4.028555) | 3.040326 / 2.142072 (0.898253) | 1.448538 / 4.805227 (-3.356690) | 0.257230 / 6.500664 (-6.243434) | 0.085137 / 0.075469 (0.009668) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.668173 / 1.841788 (-0.173615) | 18.668520 / 8.074308 (10.594212) | 20.535542 / 10.191392 (10.344150) | 0.244580 / 0.680424 (-0.435844) | 0.026364 / 0.534201 (-0.507837) | 0.531753 / 0.579283 (-0.047530) | 0.616578 / 0.434364 (0.182214) | 0.618906 / 0.540337 (0.078569) | 0.738785 / 1.386936 (-0.648151) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#f7265cafa3103d77d6d52aa897088faefcd96659 \"CML watermark\")\n" ]

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[ "A duplicate of https://github.com/huggingface/datasets/issues/5281" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "Hi again @lhoestq this is ready for review! Not sure I have permission to add people to the reviewers list...", "Cool ! I think you can define `IterableDataset.from_spark` instead of adding `streaming=` in `Dataset.from_spark`, it can be more intuitive IMO :)", "Thanks for reviewing! I moved the streaming behavior to IterableDataset.from_spark", "Thanks Quentin! I'll flesh out the docs in a follow-up PR", "Friendly ping @lhoestq ", "Thanks @lhoestq ! I fixed the partition order thing and added more unit tests.", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006165 / 0.011353 (-0.005188) | 0.004497 / 0.011008 (-0.006511) | 0.099142 / 0.038508 (0.060634) | 0.027479 / 0.023109 (0.004369) | 0.352491 / 0.275898 (0.076593) | 0.402993 / 0.323480 (0.079513) | 0.004885 / 0.007986 (-0.003100) | 0.003315 / 0.004328 (-0.001013) | 0.075787 / 0.004250 (0.071537) | 0.035320 / 0.037052 (-0.001732) | 0.368401 / 0.258489 (0.109912) | 0.409090 / 0.293841 (0.115249) | 0.030125 / 0.128546 (-0.098421) | 0.011670 / 0.075646 (-0.063976) | 0.324381 / 0.419271 (-0.094890) | 0.050815 / 0.043533 (0.007283) | 0.352598 / 0.255139 (0.097460) | 0.389189 / 0.283200 (0.105989) | 0.092873 / 0.141683 (-0.048810) | 1.485140 / 1.452155 (0.032986) | 1.545586 / 1.492716 (0.052869) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.199522 / 0.018006 (0.181516) | 0.404576 / 0.000490 (0.404087) | 0.003322 / 0.000200 (0.003122) | 0.000074 / 0.000054 (0.000020) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.022945 / 0.037411 (-0.014466) | 0.095512 / 0.014526 (0.080987) | 0.103077 / 0.176557 (-0.073480) | 0.163918 / 0.737135 (-0.573217) | 0.105560 / 0.296338 (-0.190779) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.417360 / 0.215209 (0.202151) | 4.161693 / 2.077655 (2.084039) | 1.851941 / 1.504120 (0.347821) | 1.649872 / 1.541195 (0.108677) | 1.682099 / 1.468490 (0.213609) | 0.693187 / 4.584777 (-3.891590) | 3.462528 / 3.745712 (-0.283184) | 1.839893 / 5.269862 (-3.429968) | 1.155945 / 4.565676 (-3.409731) | 0.082611 / 0.424275 (-0.341664) | 0.012076 / 0.007607 (0.004469) | 0.514325 / 0.226044 (0.288280) | 5.155052 / 2.268929 (2.886123) | 2.307280 / 55.444624 (-53.137345) | 1.966483 / 6.876477 (-4.909994) | 2.018892 / 2.142072 (-0.123181) | 0.803068 / 4.805227 (-4.002159) | 0.152213 / 6.500664 (-6.348451) | 0.066320 / 0.075469 (-0.009149) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.218578 / 1.841788 (-0.623209) | 13.563869 / 8.074308 (5.489561) | 13.954596 / 10.191392 (3.763204) | 0.151527 / 0.680424 (-0.528897) | 0.016655 / 0.534201 (-0.517546) | 0.380637 / 0.579283 (-0.198646) | 0.395854 / 0.434364 (-0.038509) | 0.459111 / 0.540337 (-0.081226) | 0.560219 / 1.386936 (-0.826717) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006427 / 0.011353 (-0.004926) | 0.004728 / 0.011008 (-0.006280) | 0.080525 / 0.038508 (0.042017) | 0.027294 / 0.023109 (0.004185) | 0.414688 / 0.275898 (0.138790) | 0.449882 / 0.323480 (0.126402) | 0.004771 / 0.007986 (-0.003214) | 0.003402 / 0.004328 (-0.000926) | 0.078748 / 0.004250 (0.074497) | 0.037046 / 0.037052 (-0.000007) | 0.417398 / 0.258489 (0.158909) | 0.462921 / 0.293841 (0.169080) | 0.030364 / 0.128546 (-0.098182) | 0.011810 / 0.075646 (-0.063837) | 0.089787 / 0.419271 (-0.329485) | 0.039806 / 0.043533 (-0.003727) | 0.403401 / 0.255139 (0.148262) | 0.439477 / 0.283200 (0.156278) | 0.088431 / 0.141683 (-0.053252) | 1.534373 / 1.452155 (0.082219) | 1.592316 / 1.492716 (0.099600) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.217701 / 0.018006 (0.199695) | 0.384770 / 0.000490 (0.384280) | 0.000437 / 0.000200 (0.000237) | 0.000061 / 0.000054 (0.000006) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.024952 / 0.037411 (-0.012459) | 0.098728 / 0.014526 (0.084202) | 0.106324 / 0.176557 (-0.070233) | 0.155484 / 0.737135 (-0.581651) | 0.109503 / 0.296338 (-0.186836) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.450639 / 0.215209 (0.235430) | 4.523110 / 2.077655 (2.445455) | 2.224810 / 1.504120 (0.720690) | 2.119516 / 1.541195 (0.578321) | 2.225192 / 1.468490 (0.756702) | 0.695397 / 4.584777 (-3.889380) | 3.433559 / 3.745712 (-0.312153) | 2.633127 / 5.269862 (-2.636735) | 1.448471 / 4.565676 (-3.117206) | 0.082262 / 0.424275 (-0.342013) | 0.012246 / 0.007607 (0.004639) | 0.561243 / 0.226044 (0.335199) | 5.652711 / 2.268929 (3.383782) | 2.689771 / 55.444624 (-52.754853) | 2.359512 / 6.876477 (-4.516965) | 2.471098 / 2.142072 (0.329026) | 0.802955 / 4.805227 (-4.002272) | 0.151142 / 6.500664 (-6.349522) | 0.067494 / 0.075469 (-0.007975) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.306879 / 1.841788 (-0.534909) | 14.030775 / 8.074308 (5.956467) | 12.917790 / 10.191392 (2.726398) | 0.141269 / 0.680424 (-0.539155) | 0.016264 / 0.534201 (-0.517937) | 0.411957 / 0.579283 (-0.167326) | 0.393235 / 0.434364 (-0.041129) | 0.505144 / 0.540337 (-0.035193) | 0.590660 / 1.386936 (-0.796276) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#7790ebd7072eafff755fb575b392f3efa74069e4 \"CML watermark\")\n" ]

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[ "Thanks for reporting, @markovalexander.\r\n\r\nUnfortunately, I'm not able to reproduce the issue: the `tiktoken` tokenizer can be used within `Dataset.map`, both in my local machine and in a Colab notebook: https://colab.research.google.com/drive/1DhJroZgk0sNFJ2Mrz-jYgrmh9jblXaCG?usp=sharing\r\n\r\nAre you sure you are using `datasets` version 2.11.0?" ]

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[ "Thanks for reporting, @yaseen157.\r\n\r\nCould you please give the complete error stack trace?", "I am not able to reproduce your issue: the dataset loads perfectly on my local machine and on a Colab notebook: https://colab.research.google.com/drive/1Fbdoa1JdNz8DOdX6gmIsOK1nCT8Abj4O?usp=sharing\r\n```python\r\nIn [1]: from datasets import load_dataset\r\n\r\nIn [2]: ds = load_dataset(\"squad\")\r\nDownloading builder script: 100%|█████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 5.27k/5.27k [00:00<00:00, 3.22MB/s]\r\nDownloading metadata: 100%|███████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 2.36k/2.36k [00:00<00:00, 1.60MB/s]\r\nDownloading readme: 100%|█████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 7.67k/7.67k [00:00<00:00, 4.58MB/s]\r\nDownloading and preparing dataset squad/plain_text to ...t/.cache/huggingface/datasets/squad/plain_text/1.0.0/d6ec3ceb99ca480ce37cdd35555d6cb2511d223b9150cce08a837ef62ffea453...\r\nDownloading data: 30.3MB [00:00, 91.8MB/s] | 0/2 [00:00<?, ?it/s]\r\nDownloading data: 4.85MB [00:00, 75.3MB/s] \r\nDownloading data files: 100%|████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 2/2 [00:00<00:00, 2.31it/s]\r\nExtracting data files: 100%|███████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 2/2 [00:00<00:00, 2157.01it/s]\r\nDataset squad downloaded and prepared to .../.cache/huggingface/datasets/squad/plain_text/1.0.0/d6ec3ceb99ca480ce37cdd35555d6cb2511d223b9150cce08a837ef62ffea453. Subsequent calls will reuse this data.\r\n100%|███████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 2/2 [00:00<00:00, 463.95it/s]\r\n\r\nIn [3]: ds\r\nOut[3]: \r\nDatasetDict({\r\n train: Dataset({\r\n features: ['id', 'title', 'context', 'question', 'answers'],\r\n num_rows: 87599\r\n })\r\n validation: Dataset({\r\n features: ['id', 'title', 'context', 'question', 'answers'],\r\n num_rows: 10570\r\n })\r\n})\r\n```", "I am at a complete loss for what's happening here. A quick summary, I have 3 machines to try this with:\r\n1) My windows 10 laptop\r\n2) Linux machine1, super computer login node\r\n3) Linux machine2, super computer compute node\r\n\r\nLet's define the following as a test script for the machines:\r\n\r\n```\r\nimport traceback\r\nimport datasets\r\nprint(f\"{datasets.__version__=}\")\r\ntry:\r\n ds = datasets.load_dataset(\"squad\")\r\nexcept:\r\n traceback.print_exc()\r\nelse:\r\n print(\"Success!\")\r\n```\r\n\r\nThe Windows laptop enters some sort of traceback recursion loop:\r\n\r\n> datasets.__version__='2.7.1'\r\n> Downloading and preparing dataset squad/plain_text to C:/Users/yr3g17/.cache/huggingface/datasets/squad/plain_text/1.0.0/d6ec3ceb99ca480ce37cdd35555d6cb2511d223b9150cce08a837ef62ffea453...\r\n> Downloading data files: 100%|██████████| 2/2 [00:00<?, ?it/s]\r\n> Traceback (most recent call last):\r\n> File \"<string>\", line 1, in <module>\r\n> File \"C:\\Users\\yr3g17\\AppData\\Local\\Programs\\Python\\Python39\\lib\\multiprocessing\\spawn.py\", line 116, in spawn_main\r\n> exitcode = _main(fd, parent_sentinel)\r\n> File \"C:\\Users\\yr3g17\\AppData\\Local\\Programs\\Python\\Python39\\lib\\multiprocessing\\spawn.py\", line 125, in _main\r\n> prepare(preparation_data)\r\n> File \"C:\\Users\\yr3g17\\AppData\\Local\\Programs\\Python\\Python39\\lib\\multiprocessing\\spawn.py\", line 236, in prepare\r\n> _fixup_main_from_path(data['init_main_from_path'])\r\n> File \"C:\\Users\\yr3g17\\AppData\\Local\\Programs\\Python\\Python39\\lib\\multiprocessing\\spawn.py\", line 287, in _fixup_main_from_path\r\n> main_content = runpy.run_path(main_path,\r\n> File \"C:\\Users\\yr3g17\\AppData\\Local\\Programs\\Python\\Python39\\lib\\runpy.py\", line 267, in run_path\r\n> code, fname = _get_code_from_file(run_name, path_name)\r\n> File \"C:\\Users\\yr3g17\\AppData\\Local\\Programs\\Python\\Python39\\lib\\runpy.py\", line 237, in _get_code_from_file\r\n> with io.open_code(decoded_path) as f:\r\n> OSError: [Errno 22] Invalid argument: 'C:\\\\Users\\\\yr3g17\\\\OneDrive - University of Southampton\\\\Documents\\\\PhD-repository\\\\<input>'\r\n> Traceback (most recent call last):\r\n> File \"<string>\", line 1, in <module>\r\n> File \"C:\\Users\\yr3g17\\AppData\\Local\\Programs\\Python\\Python39\\lib\\multiprocessing\\spawn.py\", line 116, in spawn_main\r\n> exitcode = _main(fd, parent_sentinel)\r\n> File \"C:\\Users\\yr3g17\\AppData\\Local\\Programs\\Python\\Python39\\lib\\multiprocessing\\spawn.py\", line 125, in _main\r\n> prepare(preparation_data)\r\n**this error traceback is endlessly recursive**\r\n\r\nThis is a brand new issue that started today and I didn't even realise was a thing, as I had been using my windows machine to follow tracebacks for the other machines...\r\n\r\nI suspect this issue had something to do with my filepath naming, but I couldn't confirm this when I spent time trying to debug this myself weeks ago, something to do with files being locked and never released. I'm not too concerned about my laptop not working here because I've had so many issues with Microsoft OneDrive and my filesystem.\r\n\r\nLinux machines 1 and 2 were working fine for months, but have all of a sudden stopped working. Trying to run linux machine 1 (login node), I get:\r\n\r\n> datasets.__version__='2.10.1'\r\n> Downloading and preparing dataset json/squad to /home/yr3g17/.cache/hugg\r\ningface/datasets/json/squad-d733af945be1d2c2/0.0.0/0f7e3662623656454fcd2\r\nb650f34e886a7db4b9104504885bd462096cc7a9f51...\r\n> Downloading data files: 100%|███████████████████████████████████████████\r\n█████████████████████████████████████████████| 2/2 [00:00<00:00, 4042.70\r\nit/s]\r\n>Extracting data files: 100%|███████████████████████████████████████\r\n███████████████████████████████████████████████████| 2/2 [00:00<00:00, 1\r\n11.15it/s]\r\n> Generating train split: 0 examples [00:00, ? examples/s]\r\n\r\n and hangs here. This has not happened to me before on the Linux machine. If I forcefully keyboard interrupt, I get:\r\n \r\n> Traceback (most recent call last):\r\n> File \"<stdin>\", line 2, in <module>\r\n> File \"/home/yr3g17/.conda/envs/arkroyal/lib/python3.10/site-packages/d\r\n> atasets/load.py\", line 1782, in load_dataset\r\n> builder_instance.download_and_prepare(\r\n> File \"/home/yr3g17/.conda/envs/arkroyal/lib/python3.10/site-packages/d\r\n> atasets/builder.py\", line 793, in download_and_prepare\r\n> with FileLock(lock_path) if is_local else contextlib.nullcontext():\r\n> File \"/home/yr3g17/.conda/envs/arkroyal/lib/python3.10/site-packages/d\r\n> atasets/utils/filelock.py\", line 320, in __enter__\r\n> self.acquire()\r\n> File \"/home/yr3g17/.conda/envs/arkroyal/lib/python3.10/site-packages/d\r\n> atasets/utils/filelock.py\", line 282, in acquire\r\n> time.sleep(poll_intervall)\r\n\r\nWhich also appears to be file lock related! I resolved this by navigating to my ~/.cache/huggingface/datasets directory and wiping out anything to do with the squad dataset in *.lock files. Now I get:\r\n\r\n```\r\nfrom datasets import load_dataset\r\ndataset_load(\"squad\")\r\n\r\n```\r\n> Downloading and preparing dataset squad/plain_text to /home/yr3g17/.cache/huggingface/datasets/squad/plain_text/1.0.0/d6ec3ceb99ca480ce37cdd35555d6cb\r\n> 2511d223b9150cce08a837ef62ffea453...\r\n> Downloading data files: 100%|██████████████████████████████████████████████████████████████████████████████████████████| 2/2 [00:00<00:00, 44.75it/s]\r\n> Extracting data files: 100%|███████████████████████████████████████████████████████████████████████████████████████████| 2/2 [00:00<00:00, 8.54it/s]\r\n> Dataset squad downloaded and prepared to /home/yr3g17/.cache/huggingface/datasets/squad/plain_text/1.0.0/d6ec3ceb99ca480ce37cdd35555d6cb2511d223b9150\r\n> cce08a837ef62ffea453. Subsequent calls will reuse this data.\r\n> 100%|██████████████████████████████████████████████████████████████████████████████████████████████████████████████████| 2/2 [00:00<00:00, 19.77it/s]\r\n> DatasetDict({\r\n> train: Dataset({\r\n> features: ['id', 'title', 'context', 'question', 'answers'],\r\n> num_rows: 87599\r\n> })\r\n> validation: Dataset({\r\n> features: ['id', 'title', 'context', 'question', 'answers'],\r\n> num_rows: 10570\r\n> })\r\n> })\r\n> \r\n\r\nWhich all seems fine right, it's doing what it should be. But now, without ever leaving the IDE, I \"make a subsequent call\" to reuse the data by repeating the command. I encounter the following traceback\r\n\r\n`load_dataset(\"squad\")`\r\n\r\n> Traceback (most recent call last):\r\n> File \"<stdin>\", line 1, in <module>\r\n> File \"/home/yr3g17/.conda/envs/arkroyal/lib/python3.10/site-packages/datasets/load.py\", line 1759, in load_dataset\r\n> builder_instance = load_dataset_builder(\r\n> File \"/home/yr3g17/.conda/envs/arkroyal/lib/python3.10/site-packages/datasets/load.py\", line 1496, in load_dataset_builder\r\n> dataset_module = dataset_module_factory(\r\n> File \"/home/yr3g17/.conda/envs/arkroyal/lib/python3.10/site-packages/datasets/load.py\", line 1151, in dataset_module_factory\r\n> ).get_module()\r\n> File \"/home/yr3g17/.conda/envs/arkroyal/lib/python3.10/site-packages/datasets/load.py\", line 631, in get_module\r\n> data_files = DataFilesDict.from_local_or_remote(\r\n> File \"/home/yr3g17/.conda/envs/arkroyal/lib/python3.10/site-packages/datasets/data_files.py\", line 796, in from_local_or_remote\r\n> DataFilesList.from_local_or_remote(\r\n> File \"/home/yr3g17/.conda/envs/arkroyal/lib/python3.10/site-packages/datasets/data_files.py\", line 764, in from_local_or_remote\r\n> data_files = resolve_patterns_locally_or_by_urls(base_path, patterns, allowed_extensions)\r\n> File \"/home/yr3g17/.conda/envs/arkroyal/lib/python3.10/site-packages/datasets/data_files.py\", line 369, in resolve_patterns_locally_or_by_urls\r\n> raise FileNotFoundError(error_msg)\r\n> FileNotFoundError: Unable to resolve any data file that matches '['train[-._ 0-9/]**', '**[-._ 0-9/]train[-._ 0-9/]**', 'training[-._ 0-9/]**', '**[-\r\n> ._ 0-9/]training[-._ 0-9/]**']' at /mainfs/home/yr3g17/.cache/huggingface/datasets/squad with any supported extension ['csv', 'tsv', 'json', 'jsonl',\r\n> 'parquet', 'txt', 'blp', 'bmp', 'dib', 'bufr', 'cur', 'pcx', 'dcx', 'dds', 'ps', 'eps', 'fit', 'fits', 'fli', 'flc', 'ftc', 'ftu', 'gbr', 'gif', 'gr\r\n> ib', 'h5', 'hdf', 'png', 'apng', 'jp2', 'j2k', 'jpc', 'jpf', 'jpx', 'j2c', 'icns', 'ico', 'im', 'iim', 'tif', 'tiff', 'jfif', 'jpe', 'jpg', 'jpeg', '\r\n> mpg', 'mpeg', 'msp', 'pcd', 'pxr', 'pbm', 'pgm', 'ppm', 'pnm', 'psd', 'bw', 'rgb', 'rgba', 'sgi', 'ras', 'tga', 'icb', 'vda', 'vst', 'webp', 'wmf', '\r\n> emf', 'xbm', 'xpm', 'BLP', 'BMP', 'DIB', 'BUFR', 'CUR', 'PCX', 'DCX', 'DDS', 'PS', 'EPS', 'FIT', 'FITS', 'FLI', 'FLC', 'FTC', 'FTU', 'GBR', 'GIF', 'G\r\n> RIB', 'H5', 'HDF', 'PNG', 'APNG', 'JP2', 'J2K', 'JPC', 'JPF', 'JPX', 'J2C', 'ICNS', 'ICO', 'IM', 'IIM', 'TIF', 'TIFF', 'JFIF', 'JPE', 'JPG', 'JPEG',\r\n> 'MPG', 'MPEG', 'MSP', 'PCD', 'PXR', 'PBM', 'PGM', 'PPM', 'PNM', 'PSD', 'BW', 'RGB', 'RGBA', 'SGI', 'RAS', 'TGA', 'ICB', 'VDA', 'VST', 'WEBP', 'WMF',\r\n> 'EMF', 'XBM', 'XPM', 'aiff', 'au', 'avr', 'caf', 'flac', 'htk', 'svx', 'mat4', 'mat5', 'mpc2k', 'ogg', 'paf', 'pvf', 'raw', 'rf64', 'sd2', 'sds', 'ir\r\n> cam', 'voc', 'w64', 'wav', 'nist', 'wavex', 'wve', 'xi', 'mp3', 'opus', 'AIFF', 'AU', 'AVR', 'CAF', 'FLAC', 'HTK', 'SVX', 'MAT4', 'MAT5', 'MPC2K', 'O\r\n> GG', 'PAF', 'PVF', 'RAW', 'RF64', 'SD2', 'SDS', 'IRCAM', 'VOC', 'W64', 'WAV', 'NIST', 'WAVEX', 'WVE', 'XI', 'MP3', 'OPUS', 'zip']\r\n\r\nIt doesn't even appear like I can reliably repeat this process. I'll nuke squad files in my dataset cache and run the Python code again (which downloads a new copy of the dataset to cache). It will either fail (as it just did in the quote above), or it will successfully recall the dataset.\r\n\r\nI repeated this nuking process a few times until calling load_dataset was reliably giving me the correct result (no filelocking issues or tracebacks). I then sent the test script as a job to the supercomputer compute nodes (which do not have internet access and therefore depend on cached data from Linux machine 1 login nodes)\r\n\r\n> Using the latest cached version of the module from /home/yr3g17/.cache/huggingface/modules/datasets_modules/datasets/squad/8730650fed465361f38ac4d810\r\n> ccdd16e8fc87b56498e52fb7e2cadaefc1f177 (last modified on Tue Feb 14 10:12:56 2023) since it couldn't be found locally at squad., or remotely on the Hugging Face Hub.\r\n> Traceback (most recent call last):\r\n> File \"/mainfs/scratch/yr3g17/squad_qanswering/3054408/0/../../main.py\", line 5, in <module>\r\n> dataset = load_dataset(\"squad\")\r\n> File \"/home/yr3g17/.conda/envs/arkroyal/lib/python3.10/site-packages/datasets/load.py\", line 1759, in load_dataset\r\n> builder_instance = load_dataset_builder(\r\n> File \"/home/yr3g17/.conda/envs/arkroyal/lib/python3.10/site-packages/datasets/load.py\", line 1522, in load_dataset_builder\r\n> builder_instance: DatasetBuilder = builder_cls(\r\n> TypeError: 'NoneType' object is not callable\r\n\r\nand I have absolutely no idea why the second and third machines are producing different tracebacks. I have previously run these exact scripts successfully on the login and compute nodes of the supercomputer, this issue I'm raising has appeared fairly recently for me. This, is where I encounter the TypeError that I opened this issue with, which I was able to traceback (using my laptop before it too started not working) to whatever was dynamically importing \"builder_cls\". That bit of code wasn't doing importing builder_cls correctly and would effectively make the assignment \"builder_cls=None\" resulting in the TypeError. Does any of this help?", "I'm back on linux machine 1 (login node) now. After submitting that as a job to machine 2 and it failing with TypeError, linux machine 1 now produces identical traceback to machine 2:\r\n\r\n> (arkroyal) [yr3g17@cyan52 squad_qanswering]$ python\r\n> Python 3.10.8 (main, Nov 24 2022, 14:13:03) [GCC 11.2.0] on linux\r\n> Type \"help\", \"copyright\", \"credits\" or \"license\" for more information.\r\n>\r\n> from datasets import load_dataset\r\n> load_dataset(\"squad\")\r\n>\r\n> Traceback (most recent call last):\r\n> File \"<stdin>\", line 1, in <module>\r\n> File \"/home/yr3g17/.conda/envs/arkroyal/lib/python3.10/site-packages/datasets/load.py\", line 1759, in load_dataset\r\n> builder_instance = load_dataset_builder(\r\n> File \"/home/yr3g17/.conda/envs/arkroyal/lib/python3.10/site-packages/datasets/load.py\", line 1522, in load_dataset_builder\r\n> builder_instance: DatasetBuilder = builder_cls(\r\n> TypeError: 'NoneType' object is not callable\r\n\r\nI thought it might be useful to provide you with my cache file structure:\r\n\r\n>_home_yr3g17_.cache_huggingface_datasets_casino_default_1.1.0_302c3b1ac78c48091deabe83a11f4003c7b472a4e11a8eb92799653785bd5da1.lock\r\n>_home_yr3g17_.cache_huggingface_datasets_imdb_plain_text_1.0.0_2fdd8b9bcadd6e7055e742a706876ba43f19faee861df134affd7a3f60fc38a1.lock\r\n>_home_yr3g17_.cache_huggingface_datasets_squad_plain_text_1.0.0_d6ec3ceb99ca480ce37cdd35555d6cb2511d223b9150cce08a837ef62ffea453.lock\r\n>_home_yr3g17_.cache_huggingface_datasets_yelp_review_full_yelp_review_full_1.0.0_e8e18e19d7be9e75642fc66b198abadb116f73599ec89a69ba5dd8d1e57ba0bf.lock\r\n> casino\r\n> downloads\r\n> imdb\r\n> json\r\n> squad\r\n> squad_v2\r\n> yelp_review_full\r\n\r\nThe inside of squad/plain_text/1.0.0/ looks like\r\n\r\n> d6ec3ceb99ca480ce37cdd35555d6cb2511d223b9150cce08a837ef62ffea453\r\n> d6ec3ceb99ca480ce37cdd35555d6cb2511d223b9150cce08a837ef62ffea453.incomplete_info.lock\r\n> d6ec3ceb99ca480ce37cdd35555d6cb2511d223b9150cce08a837ef62ffea453_builder.lock\r\n", "I see this is quite a complex use case...\r\n\r\nLet's try multiple things:\r\n- First, update `datasets` and make sure you use the same version in all machines, so that we can easily compare different behaviors.\r\n ```\r\n pip install -U datasets\r\n ```\r\n- Second, wherever you run the `load_dataset(\"squad\")` command, make sure there is not a local directory named \"squad\". The datasets library gives priority to any local file/directory over the datasets on the Hugging Face Hub\r\n - I tell you this, because in one of your trace backs, it seems it refers to a local directory:\r\n ```\r\n Downloading and preparing dataset json/squad to /home/yr3g17/.cache/huggingface/datasets/json/squad-d733af945be1d2c2/0.0.0/0f7e3662623656454fcd2b650f34e886a7db4b9104504885bd462096cc7a9f51...\r\n ```\r\n- Third, to use the \"squad\" dataset from the Hub, you need to have internet connection, so that you can download the \"squad\" Python loading script from the Hub. Do all your machines have internet connection?\r\n - I ask this because of this error message:\r\n ```\r\n Using the latest cached version of the module from /home/yr3g17/.cache/huggingface/modules/datasets_modules/datasets/squad/8730650fed465361f38ac4d810ccdd16e8fc87b56498e52fb7e2cadaefc1f177 (last modified on Tue Feb 14 10:12:56 2023) since it couldn't be found locally at squad., or remotely on the Hugging Face Hub.\r\n ```\r\n- Fourth, to be sure that we avoid any issues with the cache, it is a good idea to remove it and regenerate it. Remove `.cache/huggingface/datasets` and also `.cache/huggingface/modules`\r\n- Fifth, as an additional debugging tool, let's be sure we use the latest \"squad\" Python loading script by passing the revision parameter:\r\n ```\r\n ds = load_dataset(\"squad\", revision=\"5fe18c4c680f9922d794e3f4dd673a751c74ee37\")\r\n ```", "Additionally, we just had an infrastructure issue on the Hugging Face Hub at around 11:30 today. That might have contributed to the connectivity issue... It is fixed now.\r\n\r\nhttps://status.huggingface.co/", "Hi again, thanks for your help and insight Albert Villanova.\r\n\r\nIt's all working now, so thank you for that. For the benefit of anyone else who ends up in this thread, I solved the problem by addressing Albert's advice:\r\n\r\n(1) Both Windows and Linux machine 1 (have internet access) and can now access the SQuAD dataset. The supercomputer login node can only access version 2.7.1, but my Windows laptop is running on datasets 2.11.0 just fine. I suspect it was just a perfect storm alongside the aforementioned \"infrastructure issue\".\r\n\r\n(2) I did have a local directory called squad, because I was using a local copy of evaluate's \"SQuAD\" metric. The supercomputer compute nodes do not have internet access and treat `metric = evaluate.load('<x>')` as a way of loading a metric at the local path `./<x>/<x>.py`, which could've been a related issue as I was storing the metric under `squad/squad.py`. Don't be lazy like me and store the evaluation code under a path with a name that can be misinterpreted.\r\n\r\n(3) I can't give internet access to the supercomputer compute nodes, so local files do just fine here.\r\n\r\n(4) The windows and Linux machine 1 can both access the internet and were getting fresh copies of the dataset from the huggingface hub. Linux machine 2 was working after I cleared the contents of ~/.cache/huggingface/....\r\n\r\nI feel silly now, knowing it was all so simple! Sorry about that Albert, and thanks again for the help. I've not raised a Github issue like this before, so I'm not sure if I should be close my own issues or if this is something you guys do?", "Thanks for your detailed feedback which for sure will be useful to other community members." ]

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[ "Closing this one in favor of the same issue opened in the `transformers` repo." ]

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[ "Hi ! Interesting :) What kind of new types would you like to use ?\r\n\r\nNote that you can already implement your own decoding by using `set_transform` that can decode data on-the-fly when rows are accessed", "An interesting proposal indeed. \r\n\r\nPandas and Polars have the \"extension API\", so doing something similar on our side could be useful, too. However, this requires defining a common interface for the existing feature types before discussing the API/workflow for defining/sharing custom feature types, and this could take some time.\r\n\r\nIt would also be nice if the datasets viewer could render these custom types.", "Thank you for your replies! @lhoestq I have a use case involving whole-slide images in digital pathology. These are very large images (potentially gigapixel scale), so standard image tools are not suitable. Essentially, encoding/decoding can be done from/to [`OpenSlide`](https://openslide.org/api/python/) objects. Though there may be interest in this use case from the digital pathology community, it may not be sufficiently useful to suggest adding the feature type, but there will likely be many other use cases for a generic custom feature type.\r\n\r\nThank you for pointing out `set_transform`! I will make sure to keep this in mind in the future.\r\n\r\n@mariosasko An \"extension API\" sounds like a good idea, though I understand that this needs to be properly defined, and that you will need to discuss it internally. Support from the viewer would be awesome, too, though the generalization to arbitrary types sounds challenging.\r\n\r\nFor now, happy to know that you're considering the feature. Feel free to let me know if I can do anything to support the process." ]

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[ "You need to remove the `text` and `text_en` columns before passing the dataset to the `DataLoader` to avoid this error:\r\n```python\r\ntokenized_datasets = tokenized_datasets.remove_columns([\"text\", \"text_en\"])\r\n```\r\n", "Thanks @mariosasko. Now I am getting this error:\r\n\r\n```\r\nTraceback (most recent call last):\r\n File \"client_2.py\", line 138, in <module>\r\n main()\r\n File \"client_2.py\", line 134, in main\r\n fl.client.start_numpy_client(server_address=\"localhost:8080\", client=IMDBClient())\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/flwr/client/app.py\", line 208, in start_numpy_client\r\n start_client(\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/flwr/client/app.py\", line 142, in start_client\r\n client_message, sleep_duration, keep_going = handle(\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/flwr/client/grpc_client/message_handler.py\", line 68, in handle\r\n return _fit(client, server_msg.fit_ins), 0, True\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/flwr/client/grpc_client/message_handler.py\", line 157, in _fit\r\n fit_res = client.fit(fit_ins)\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/flwr/client/app.py\", line 252, in _fit\r\n results = self.numpy_client.fit(parameters, ins.config) # type: ignore\r\n File \"client_2.py\", line 124, in fit\r\n train(net, trainloader, epochs=1)\r\n File \"client_2.py\", line 78, in train\r\n for batch in trainloader:\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/torch/utils/data/dataloader.py\", line 652, in __next__\r\n data = self._next_data()\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/torch/utils/data/dataloader.py\", line 692, in _next_data\r\n data = self._dataset_fetcher.fetch(index) # may raise StopIteration\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/torch/utils/data/_utils/fetch.py\", line 49, in fetch\r\n data = [self.dataset[idx] for idx in possibly_batched_index]\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/torch/utils/data/_utils/fetch.py\", line 49, in <listcomp>\r\n data = [self.dataset[idx] for idx in possibly_batched_index]\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/datasets/arrow_dataset.py\", line 1525, in __getitem__\r\n return self._getitem(\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/datasets/arrow_dataset.py\", line 1517, in _getitem\r\n pa_subtable = query_table(self._data, key, indices=self._indices if self._indices is not None else None)\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/datasets/formatting/formatting.py\", line 373, in query_table\r\n pa_subtable = _query_table_with_indices_mapping(table, key, indices=indices)\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/datasets/formatting/formatting.py\", line 55, in _query_table_with_indices_mapping\r\n return _query_table(table, key)\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/datasets/formatting/formatting.py\", line 79, in _query_table\r\n return table.fast_slice(key % table.num_rows, 1)\r\nZeroDivisionError: integer division or modulo by zero\r\n```\r\n\r\nThis is my code:\r\n\r\n```\r\nfrom collections import OrderedDict\r\nimport warnings\r\n\r\nimport flwr as fl\r\nimport torch\r\nimport numpy as np\r\n\r\nimport random\r\nfrom torch.utils.data import DataLoader\r\n\r\nfrom datasets import load_dataset, load_metric\r\n\r\nfrom transformers import AutoTokenizer, DataCollatorWithPadding\r\nfrom transformers import AutoModelForSequenceClassification\r\nfrom transformers import AdamW\r\n#from transformers import tokenized_datasets\r\n\r\n\r\nwarnings.filterwarnings(\"ignore\", category=UserWarning)\r\n# DEVICE = torch.device(\"cuda:0\" if torch.cuda.is_available() else \"cpu\")\r\n\r\nDEVICE = \"cpu\"\r\n\r\nCHECKPOINT = \"distilbert-base-uncased\" # transformer model checkpoint\r\n\r\n\r\ndef load_data():\r\n \"\"\"Load IMDB data (training and eval)\"\"\"\r\n raw_datasets = load_dataset(\"yhavinga/imdb_dutch\")\r\n raw_datasets = raw_datasets.shuffle(seed=42)\r\n\r\n # remove unnecessary data split\r\n del raw_datasets[\"unsupervised\"]\r\n\r\n tokenizer = AutoTokenizer.from_pretrained(CHECKPOINT)\r\n\r\n def tokenize_function(examples):\r\n return tokenizer(examples[\"text\"], truncation=True)\r\n\r\n # random 100 samples\r\n population = random.sample(range(len(raw_datasets[\"train\"])), 100)\r\n\r\n tokenized_datasets = raw_datasets.map(tokenize_function, batched=True)\r\n tokenized_datasets[\"train\"] = tokenized_datasets[\"train\"].select(population)\r\n tokenized_datasets[\"test\"] = tokenized_datasets[\"test\"].select(population)\r\n\r\n # tokenized_datasets = tokenized_datasets.remove_columns(\"text\")\r\n # tokenized_datasets = tokenized_datasets.rename_column(\"label\", \"labels\")\r\n\r\n tokenized_datasets = tokenized_datasets.remove_columns(\"attention_mask\")\r\n tokenized_datasets = tokenized_datasets.remove_columns(\"input_ids\")\r\n tokenized_datasets = tokenized_datasets.remove_columns(\"label\")\r\n # tokenized_datasets = tokenized_datasets.remove_columns(\"text_en\")\r\n\r\n # tokenized_datasets = tokenized_datasets.remove_columns(raw_datasets[\"train\"].column_names)\r\n \r\n tokenized_datasets = tokenized_datasets.remove_columns([\"text\", \"text_en\"])\r\n \r\n data_collator = DataCollatorWithPadding(tokenizer=tokenizer)\r\n trainloader = DataLoader(\r\n tokenized_datasets[\"train\"],\r\n shuffle=True,\r\n batch_size=32,\r\n collate_fn=data_collator,\r\n )\r\n\r\n testloader = DataLoader(\r\n tokenized_datasets[\"test\"], batch_size=32, collate_fn=data_collator\r\n )\r\n\r\n return trainloader, testloader\r\n\r\n\r\ndef train(net, trainloader, epochs):\r\n optimizer = AdamW(net.parameters(), lr=5e-4)\r\n net.train()\r\n for _ in range(epochs):\r\n for batch in trainloader:\r\n batch = {k: v.to(DEVICE) for k, v in batch.items()}\r\n outputs = net(**batch)\r\n loss = outputs.loss\r\n loss.backward()\r\n optimizer.step()\r\n optimizer.zero_grad()\r\n\r\n\r\ndef test(net, testloader):\r\n metric = load_metric(\"accuracy\")\r\n loss = 0\r\n net.eval()\r\n for batch in testloader:\r\n batch = {k: v.to(DEVICE) for k, v in batch.items()}\r\n with torch.no_grad():\r\n outputs = net(**batch)\r\n logits = outputs.logits\r\n loss += outputs.loss.item()\r\n predictions = torch.argmax(logits, dim=-1)\r\n metric.add_batch(predictions=predictions, references=batch[\"labels\"])\r\n loss /= len(testloader.dataset)\r\n accuracy = metric.compute()[\"accuracy\"]\r\n return loss, accuracy\r\n\r\n\r\ndef main():\r\n net = AutoModelForSequenceClassification.from_pretrained(\r\n CHECKPOINT, num_labels=2\r\n ).to(DEVICE)\r\n\r\n trainloader, testloader = load_data()\r\n\r\n # Flower client\r\n class IMDBClient(fl.client.NumPyClient):\r\n def get_parameters(self, config):\r\n return [val.cpu().numpy() for _, val in net.state_dict().items()]\r\n\r\n def set_parameters(self, parameters):\r\n params_dict = zip(net.state_dict().keys(), parameters)\r\n state_dict = OrderedDict({k: torch.Tensor(v) for k, v in params_dict})\r\n net.load_state_dict(state_dict, strict=True)\r\n\r\n def fit(self, parameters, config):\r\n self.set_parameters(parameters)\r\n print(\"Training Started...\")\r\n train(net, trainloader, epochs=1)\r\n print(\"Training Finished.\")\r\n return self.get_parameters(config={}), len(trainloader), {}\r\n\r\n def evaluate(self, parameters, config):\r\n self.set_parameters(parameters)\r\n loss, accuracy = test(net, testloader)\r\n return float(loss), len(testloader), {\"accuracy\": float(accuracy)}\r\n\r\n # Start client\r\n fl.client.start_numpy_client(server_address=\"localhost:8080\", client=IMDBClient())\r\n\r\n\r\nif __name__ == \"__main__\":\r\n main()\r\n```", "Please also remove/comment these lines:\r\n```python\r\ntokenized_datasets = tokenized_datasets.remove_columns(\"attention_mask\")\r\ntokenized_datasets = tokenized_datasets.remove_columns(\"input_ids\")\r\ntokenized_datasets = tokenized_datasets.remove_columns(\"label\")\r\n```", "Thanks @mariosasko .\r\n\r\nNow, I am trying out this [tutorial](https://flower.dev/docs/quickstart-huggingface.html) which basically trains distil-BERT with IMDB dataset (very similar to this [tutorial](https://huggingface.co/docs/transformers/main/tasks/sequence_classification)). But I don't know why my accuracy isn't increasing even after training for a significant amount of time and also by using the entire dataset. Below I have attached `client.py` file:\r\n\r\n`client.py`:\r\n\r\n```\r\nfrom collections import OrderedDict\r\nimport warnings\r\n\r\nimport flwr as fl\r\nimport torch\r\nimport numpy as np\r\n\r\nimport random\r\nfrom torch.utils.data import DataLoader\r\n\r\nfrom datasets import load_dataset, load_metric\r\n\r\nfrom transformers import AutoTokenizer, DataCollatorWithPadding\r\nfrom transformers import AutoModelForSequenceClassification\r\nfrom transformers import AdamW\r\n\r\nwarnings.filterwarnings(\"ignore\", category=UserWarning)\r\n\r\nDEVICE = \"cuda:1\"\r\n\r\nCHECKPOINT = \"distilbert-base-uncased\" # transformer model checkpoint\r\n\r\n\r\ndef load_data():\r\n \"\"\"Load IMDB data (training and eval)\"\"\"\r\n raw_datasets = load_dataset(\"imdb\")\r\n raw_datasets = raw_datasets.shuffle(seed=42)\r\n\r\n # remove unnecessary data split\r\n del raw_datasets[\"unsupervised\"]\r\n\r\n tokenizer = AutoTokenizer.from_pretrained(CHECKPOINT)\r\n\r\n def tokenize_function(examples):\r\n return tokenizer(examples[\"text\"], truncation=True)\r\n\r\n tokenized_datasets = raw_datasets.map(tokenize_function, batched=True)\r\n\r\n tokenized_datasets = tokenized_datasets.remove_columns(\"text\")\r\n tokenized_datasets = tokenized_datasets.rename_column(\"label\", \"labels\")\r\n\r\n data_collator = DataCollatorWithPadding(tokenizer=tokenizer)\r\n trainloader = DataLoader(\r\n tokenized_datasets[\"train\"],\r\n shuffle=True,\r\n batch_size=32,\r\n collate_fn=data_collator,\r\n )\r\n\r\n testloader = DataLoader(\r\n tokenized_datasets[\"test\"], batch_size=32, collate_fn=data_collator\r\n )\r\n\r\n return trainloader, testloader\r\n\r\n\r\ndef train(net, trainloader, epochs):\r\n optimizer = AdamW(net.parameters(), lr=5e-5)\r\n net.train()\r\n for i in range(epochs):\r\n print(\"Epoch: \", i+1)\r\n j = 1\r\n print(\"####################### The length of the trainloader is: \", len(trainloader)) \r\n for batch in trainloader:\r\n print(\"####################### The batch number is: \", j)\r\n batch = {k: v.to(DEVICE) for k, v in batch.items()}\r\n outputs = net(**batch)\r\n loss = outputs.loss\r\n loss.backward()\r\n optimizer.step()\r\n optimizer.zero_grad()\r\n j += 1\r\n\r\n\r\ndef test(net, testloader):\r\n metric = load_metric(\"accuracy\")\r\n loss = 0\r\n net.eval()\r\n for batch in testloader:\r\n batch = {k: v.to(DEVICE) for k, v in batch.items()}\r\n with torch.no_grad():\r\n outputs = net(**batch)\r\n logits = outputs.logits\r\n loss += outputs.loss.item()\r\n predictions = torch.argmax(logits, dim=-1)\r\n metric.add_batch(predictions=predictions, references=batch[\"labels\"])\r\n loss /= len(testloader.dataset)\r\n accuracy = metric.compute()[\"accuracy\"]\r\n return loss, accuracy\r\n\r\n\r\ndef main():\r\n net = AutoModelForSequenceClassification.from_pretrained(\r\n CHECKPOINT, num_labels=2\r\n ).to(DEVICE)\r\n\r\n trainloader, testloader = load_data()\r\n\r\n # Flower client\r\n class IMDBClient(fl.client.NumPyClient):\r\n def get_parameters(self, config):\r\n return [val.cpu().numpy() for _, val in net.state_dict().items()]\r\n\r\n def set_parameters(self, parameters):\r\n params_dict = zip(net.state_dict().keys(), parameters)\r\n state_dict = OrderedDict({k: torch.Tensor(v) for k, v in params_dict})\r\n net.load_state_dict(state_dict, strict=True)\r\n\r\n def fit(self, parameters, config):\r\n self.set_parameters(parameters)\r\n print(\"Training Started...\")\r\n train(net, trainloader, epochs=1)\r\n print(\"Training Finished.\")\r\n return self.get_parameters(config={}), len(trainloader), {}\r\n\r\n def evaluate(self, parameters, config):\r\n self.set_parameters(parameters)\r\n loss, accuracy = test(net, testloader)\r\n print({\"loss\": float(loss), \"accuracy\": float(accuracy)})\r\n return float(loss), len(testloader), {\"loss\": float(loss), \"accuracy\": float(accuracy)}\r\n\r\n # Start client\r\n fl.client.start_numpy_client(server_address=\"localhost:5040\", client=IMDBClient())\r\n\r\n\r\nif __name__ == \"__main__\":\r\n main()\r\n```\r\n\r\nCan I get any help, please?" ]

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[ "Thanks for reporting, @sauravtii.\r\n\r\nUnfortunately, I'm not able to reproduce the issue:\r\n```python\r\nIn [1]: from datasets import load_dataset\r\n\r\nIn [2]: ds = load_dataset(\"josianem/imdb\")\r\n\r\nIn [2]: ds\r\nOut[2]: \r\nDatasetDict({\r\n train: Dataset({\r\n features: ['text', 'label'],\r\n num_rows: 25799\r\n })\r\n test: Dataset({\r\n features: ['text', 'label'],\r\n num_rows: 25000\r\n })\r\n unsupervised: Dataset({\r\n features: ['text', 'label'],\r\n num_rows: 50000\r\n })\r\n})\r\n```\r\n\r\nCould you please retry to load the dataset? Maybe there was a temporary connection issue to Dropbox.", "Thanks @albertvillanova. I am facing another issue now\r\n\r\n```\r\nTraceback (most recent call last):\r\n File \"sample.py\", line 4, in <module>\r\n dataset = load_dataset(\"josianem/imdb\")\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/datasets/load.py\", line 1112, in load_dataset\r\n builder_instance.download_and_prepare(\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/datasets/builder.py\", line 636, in download_and_prepare\r\n self._download_and_prepare(\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/datasets/builder.py\", line 738, in _download_and_prepare\r\n verify_splits(self.info.splits, split_dict)\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/datasets/utils/info_utils.py\", line 74, in verify_splits\r\n raise NonMatchingSplitsSizesError(str(bad_splits))\r\ndatasets.utils.info_utils.NonMatchingSplitsSizesError: [{'expected': SplitInfo(name='train', num_bytes=34501348, num_examples=25799, dataset_name='imdb'), 'recorded': SplitInfo(name='train', num_bytes=0, num_examples=0, dataset_name='imdb')}, {'expected': SplitInfo(name='test', num_bytes=32650697, num_examples=25000, dataset_name='imdb'), 'recorded': SplitInfo(name='test', num_bytes=0, num_examples=0, dataset_name='imdb')}, {'expected': SplitInfo(name='unsupervised', num_bytes=67106814, num_examples=50000, dataset_name='imdb'), 'recorded': SplitInfo(name='unsupervised', num_bytes=0, num_examples=0, dataset_name='imdb')}]\r\n```\r\n\r\nThis is my code\r\n\r\n```\r\nfrom datasets import load_dataset, load_metric\r\n\r\ndataset = load_dataset(\"josianem/imdb\")\r\n```", "Your connection didn't work and you got an empty dataset (`num_bytes=0, num_examples=0`):\r\n```\r\ndatasets.utils.info_utils.NonMatchingSplitsSizesError: \r\n[\r\n {\r\n 'expected': SplitInfo(name='train', num_bytes=34501348, num_examples=25799, dataset_name='imdb'), \r\n 'recorded': SplitInfo(name='train', num_bytes=0, num_examples=0, dataset_name='imdb')\r\n }, \r\n {\r\n 'expected': SplitInfo(name='test', num_bytes=32650697, num_examples=25000, dataset_name='imdb'), \r\n 'recorded': SplitInfo(name='test', num_bytes=0, num_examples=0, dataset_name='imdb')\r\n }, \r\n {\r\n 'expected': SplitInfo(name='unsupervised', num_bytes=67106814, num_examples=50000, dataset_name='imdb'), \r\n 'recorded': SplitInfo(name='unsupervised', num_bytes=0, num_examples=0, dataset_name='imdb')\r\n }\r\n]\r\n```\r\n\r\nCould you please try the link in your browser and see if it works? https://www.dropbox.com/s/zts98j4vkqtsns6/aclImdb_v2.tar?dl=1\r\n- If it does not work, you should contact the author of the dataset in their Community tab (https://huggingface.co/datasets/josianem/imdb/discussions) and inform them, so that they can host their data elsewhere, for example on the Hugging Face Hub itself\r\n\r\nIf the link works, you should try to load the dataset but forcing the re-download of the data files (so that the cache is refreshed with the actual data file), by passing `download_mode=\"force_redownload\"`:\r\n```python\r\ndataset = load_dataset(\"josianem/imdb\", download_mode=\"force_redownload\")\r\n```", "After pasting the link in the browser, it did start the download so it seems that the link is working. But even after including the `download_mode` in my code I am facing the same issue:\r\n\r\nError:\r\n```\r\nTraceback (most recent call last):\r\n File \"sample.py\", line 4, in <module>\r\n dataset = load_dataset(\"josianem/imdb\", download_mode=\"force_redownload\")\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/datasets/load.py\", line 1112, in load_dataset\r\n builder_instance.download_and_prepare(\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/datasets/builder.py\", line 636, in download_and_prepare\r\n self._download_and_prepare(\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/datasets/builder.py\", line 704, in _download_and_prepare\r\n split_generators = self._split_generators(dl_manager, **split_generators_kwargs)\r\n File \"/home/saurav/.cache/huggingface/modules/datasets_modules/datasets/imdb/cc6ab4acab2799be15d5d217c24548b856156dafdc850165fdc4f2031f27ff2f/imdb.py\", line 79, in _split_generators\r\n archive = dl_manager.download(_DOWNLOAD_URL)\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/datasets/utils/download_manager.py\", line 196, in download\r\n downloaded_path_or_paths = map_nested(\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/datasets/utils/py_utils.py\", line 197, in map_nested\r\n return function(data_struct)\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/datasets/utils/download_manager.py\", line 217, in _download\r\n return cached_path(url_or_filename, download_config=download_config)\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/datasets/utils/file_utils.py\", line 289, in cached_path\r\n output_path = get_from_cache(\r\n File \"/home/saurav/.local/lib/python3.8/site-packages/datasets/utils/file_utils.py\", line 606, in get_from_cache\r\n raise ConnectionError(\"Couldn't reach {}\".format(url))\r\nConnectionError: Couldn't reach https://www.dropbox.com/s/zts98j4vkqtsns6/aclImdb_v2.tar?dl=1\r\n```\r\n\r\nMy code:\r\n```\r\nfrom datasets import load_dataset, load_metric\r\n\r\ndataset = load_dataset(\"josianem/imdb\", download_mode=\"force_redownload\")\r\n```", "I have tried again to reproduce your issue without success: the dataset loads perfectly, both in my local machine and in a Colab notebook.\r\n- See: https://colab.research.google.com/drive/1dky3T0XGFuldggy22NNQQN-UqOFqvnuY?usp=sharing\r\n\r\nI think the cause maight be that you are using a very old version of `datasets`. Please, could you update it and retry?\r\n```\r\npip install -U datasets\r\n```", "That worked!! Thanks @albertvillanova : )\r\n\r\n```\r\nDownloading builder script: 100%|███████| 4.20k/4.20k [00:00<00:00, 6.69MB/s]\r\nDownloading metadata: 100%|█████████████| 2.60k/2.60k [00:00<00:00, 3.41MB/s]\r\nDownloading readme: 100%|███████████████| 7.52k/7.52k [00:00<00:00, 12.6MB/s]\r\nDownloading and preparing dataset imdb/plain_text to /home/saurav/.cache/huggingface/datasets/josianem___imdb/plain_text/1.0.0/cc6ab4acab2799be15d5d217c24548b856156dafdc850165fdc4f2031f27ff2f...\r\nDownloading data: 100%|███████████████████| 301M/301M [01:32<00:00, 3.25MB/s]\r\nDataset imdb downloaded and prepared to /home/saurav/.cache/huggingface/datasets/josianem___imdb/plain_text/1.0.0/cc6ab4acab2799be15d5d217c24548b856156dafdc850165fdc4f2031f27ff2f. Subsequent calls will reuse this data.\r\n100%|█████████████████████████████████████████| 3/3 [00:00<00:00, 794.83it/s]\r\n```\r\n\r\nThe code I used:\r\n```\r\nfrom datasets import load_dataset, load_metric\r\n\r\ndataset = load_dataset(\"josianem/imdb\", download_mode=\"force_redownload\")\r\n\r\n```\r\n\r\nBut when I remove `download_mode=\"force_redownload\"` I get the same error. Any guess on that?", "That is because the cache got the \"empty\" download file the first time you tried and got the connection error.\r\n\r\nThen, once you no longer get the connection error, you need to refresh the cache by passing `download_mode=\"force_redownload\"`." ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006804 / 0.011353 (-0.004549) | 0.004984 / 0.011008 (-0.006024) | 0.096781 / 0.038508 (0.058273) | 0.033049 / 0.023109 (0.009939) | 0.297681 / 0.275898 (0.021783) | 0.329553 / 0.323480 (0.006073) | 0.005697 / 0.007986 (-0.002289) | 0.004019 / 0.004328 (-0.000310) | 0.072691 / 0.004250 (0.068441) | 0.046921 / 0.037052 (0.009868) | 0.311467 / 0.258489 (0.052978) | 0.337616 / 0.293841 (0.043775) | 0.042400 / 0.128546 (-0.086146) | 0.011919 / 0.075646 (-0.063727) | 0.331390 / 0.419271 (-0.087881) | 0.051004 / 0.043533 (0.007471) | 0.295317 / 0.255139 (0.040178) | 0.316570 / 0.283200 (0.033371) | 0.099283 / 0.141683 (-0.042400) | 1.430583 / 1.452155 (-0.021572) | 1.493550 / 1.492716 (0.000834) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.213634 / 0.018006 (0.195628) | 0.432557 / 0.000490 (0.432067) | 0.001586 / 0.000200 (0.001386) | 0.000079 / 0.000054 (0.000025) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025249 / 0.037411 (-0.012162) | 0.105433 / 0.014526 (0.090908) | 0.113474 / 0.176557 (-0.063082) | 0.168799 / 0.737135 (-0.568336) | 0.119363 / 0.296338 (-0.176975) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.412450 / 0.215209 (0.197241) | 4.117432 / 2.077655 (2.039777) | 1.935176 / 1.504120 (0.431056) | 1.745674 / 1.541195 (0.204479) | 1.853872 / 1.468490 (0.385382) | 0.703429 / 4.584777 (-3.881348) | 3.756981 / 3.745712 (0.011269) | 3.730607 / 5.269862 (-1.539255) | 1.839052 / 4.565676 (-2.726624) | 0.087574 / 0.424275 (-0.336701) | 0.012293 / 0.007607 (0.004686) | 0.517234 / 0.226044 (0.291190) | 5.189759 / 2.268929 (2.920831) | 2.418739 / 55.444624 (-53.025885) | 2.081424 / 6.876477 (-4.795053) | 2.204464 / 2.142072 (0.062392) | 0.842768 / 4.805227 (-3.962459) | 0.169014 / 6.500664 (-6.331650) | 0.063711 / 0.075469 (-0.011758) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.180636 / 1.841788 (-0.661152) | 14.816088 / 8.074308 (6.741779) | 14.290085 / 10.191392 (4.098693) | 0.165267 / 0.680424 (-0.515156) | 0.017290 / 0.534201 (-0.516911) | 0.419678 / 0.579283 (-0.159605) | 0.418164 / 0.434364 (-0.016200) | 0.492210 / 0.540337 (-0.048127) | 0.588528 / 1.386936 (-0.798408) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007144 / 0.011353 (-0.004209) | 0.005223 / 0.011008 (-0.005785) | 0.073583 / 0.038508 (0.035075) | 0.033534 / 0.023109 (0.010425) | 0.339020 / 0.275898 (0.063122) | 0.366546 / 0.323480 (0.043066) | 0.006245 / 0.007986 (-0.001741) | 0.004081 / 0.004328 (-0.000247) | 0.073089 / 0.004250 (0.068839) | 0.047024 / 0.037052 (0.009971) | 0.342540 / 0.258489 (0.084051) | 0.379743 / 0.293841 (0.085902) | 0.037551 / 0.128546 (-0.090995) | 0.012246 / 0.075646 (-0.063400) | 0.084796 / 0.419271 (-0.334476) | 0.052256 / 0.043533 (0.008723) | 0.342675 / 0.255139 (0.087536) | 0.367157 / 0.283200 (0.083957) | 0.102939 / 0.141683 (-0.038744) | 1.409039 / 1.452155 (-0.043115) | 1.526137 / 1.492716 (0.033420) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.208143 / 0.018006 (0.190136) | 0.437940 / 0.000490 (0.437450) | 0.000424 / 0.000200 (0.000224) | 0.000056 / 0.000054 (0.000002) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.028321 / 0.037411 (-0.009091) | 0.110417 / 0.014526 (0.095891) | 0.119449 / 0.176557 (-0.057107) | 0.168081 / 0.737135 (-0.569054) | 0.126658 / 0.296338 (-0.169681) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.429302 / 0.215209 (0.214093) | 4.270547 / 2.077655 (2.192892) | 2.061323 / 1.504120 (0.557203) | 1.857877 / 1.541195 (0.316682) | 1.873317 / 1.468490 (0.404827) | 0.688750 / 4.584777 (-3.896027) | 3.767951 / 3.745712 (0.022239) | 2.011436 / 5.269862 (-3.258426) | 1.299965 / 4.565676 (-3.265712) | 0.084799 / 0.424275 (-0.339476) | 0.012082 / 0.007607 (0.004475) | 0.521981 / 0.226044 (0.295937) | 5.265333 / 2.268929 (2.996405) | 2.494326 / 55.444624 (-52.950298) | 2.144672 / 6.876477 (-4.731804) | 2.365624 / 2.142072 (0.223551) | 0.839868 / 4.805227 (-3.965359) | 0.166614 / 6.500664 (-6.334050) | 0.063804 / 0.075469 (-0.011665) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.264623 / 1.841788 (-0.577164) | 14.946515 / 8.074308 (6.872207) | 14.450115 / 10.191392 (4.258723) | 0.163878 / 0.680424 (-0.516546) | 0.017501 / 0.534201 (-0.516700) | 0.420992 / 0.579283 (-0.158291) | 0.423005 / 0.434364 (-0.011359) | 0.489505 / 0.540337 (-0.050832) | 0.594631 / 1.386936 (-0.792305) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#fd893098627230cc734f6009ad04cf885c979ac4 \"CML watermark\")\n" ]

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[ "Thanks for reporting, @surya-narayanan.\r\n\r\nI see you already started a discussion about this on the Community tab of the corresponding dataset: https://huggingface.co/datasets/EleutherAI/the_pile/discussions/10\r\nLet's continue the discussion there!" ]

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[ "Also, when generated from a zip archive, the dataset contains only a few images. In my case, 20 versus 2000+ contained in the archive. The generation from folders works as expected.", "Thanks for reporting, @blghtr.\r\n\r\nYou should include the `metadata.jsonl` in your ZIP archives, at the root level directory.\r\n\r\nI agree that our documentation is not clear enough. Maybe we could improve it.", "You can find a dummy dataset example here: https://huggingface.co/datasets/albertvillanova/tmp-imagefolder-metadata\r\n\r\n```\r\ntmp-imagefolder-metadata/\r\n└── data/\r\n ├── train.zip\r\n └── valid.zip\r\n```\r\nwhere, the directory structure within the `train.zip` archive is:\r\n```\r\nmetadata.jsonl\r\ntrain/\r\n ├── bharatanatyam/\r\n └── bharatanatyam_original_113.jpg_70c297a2-e2f2-4ed8-b93c-0c03d0809fe2.jpg\r\n └── kathak/\r\n └── kathak_original_10.jpg_2c4a2c3d-47fc-4b33-9c09-38b542826632.jpg\r\n```\r\nand the metadata file contains:\r\n```\r\n{\"file_name\": \"train/bharatanatyam/bharatanatyam_original_113.jpg_70c297a2-e2f2-4ed8-b93c-0c03d0809fe2.jpg\", \"text\": \"first\"}\r\n{\"file_name\": \"train/kathak/kathak_original_10.jpg_2c4a2c3d-47fc-4b33-9c09-38b542826632.jpg\", \"text\": \"second\"}\r\n```" ]

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[ "Supporting this could be useful (I remember a use-case for this on the Hub). Do you agree @polinaeterna? \r\n\r\nImplementing this should be possible if we iterate over metadata files and build image/audio file paths instead of iterating over image/audio files and looking for the corresponding entries in metadata files.", "I've build a similar feature from scratch and would be interested to combine it with the datasets package.\r\n\r\nMy solution works something like this:\r\nInterpret the first element of each column as a file path. If the path exists and is a file, (try to) load the files for the entire column. Thereby, one isn't restricted to a particular column name, with comes in handy when dealing with multiple file columns.\r\n\r\nI've looked into the code to try to implement this, but didn't find the right places. I'm also open to contribute, but will need some guidance." ]

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[ "Thanks for reporting, @LZY-the-boys.\r\n\r\nCould you please give more details about what is your intended dataset structure? What are the names of the columns and the value of each row?\r\n\r\nCurrently, the JSON-Lines format is supported:\r\n- Each line correspond to one row of the dataset\r\n- Each line is composed of one JSON object, where the names are the names of the columns, and the values are the values for the row-column pair." ]

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[ "The CI can be fixed by merging `main` into your branch. Can you do that before we merge ?", "_The documentation is not available anymore as the PR was closed or merged._", "Done.\n\nOn Thu, Apr 20, 2023 at 6:01 PM Quentin Lhoest ***@***.***>\nwrote:\n\n> The CI can be fixed by merging main into your branch. Can you do that\n> before we merge ?\n>\n> —\n> Reply to this email directly, view it on GitHub\n> <https://github.com/huggingface/datasets/pull/5758#issuecomment-1516488124>,\n> or unsubscribe\n> <https://github.com/notifications/unsubscribe-auth/AASS73QPLA735AMN4PFDYRTXCFFTJANCNFSM6AAAAAAXACBUQU>\n> .\n> You are receiving this because you authored the thread.Message ID:\n> ***@***.***>\n>\n", "Nice thanks !", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007161 / 0.011353 (-0.004192) | 0.005099 / 0.011008 (-0.005909) | 0.099301 / 0.038508 (0.060793) | 0.034144 / 0.023109 (0.011034) | 0.298273 / 0.275898 (0.022375) | 0.329009 / 0.323480 (0.005529) | 0.005486 / 0.007986 (-0.002500) | 0.003887 / 0.004328 (-0.000441) | 0.074769 / 0.004250 (0.070518) | 0.047505 / 0.037052 (0.010453) | 0.306550 / 0.258489 (0.048061) | 0.335380 / 0.293841 (0.041540) | 0.034796 / 0.128546 (-0.093750) | 0.012152 / 0.075646 (-0.063495) | 0.332194 / 0.419271 (-0.087077) | 0.049661 / 0.043533 (0.006128) | 0.296832 / 0.255139 (0.041693) | 0.316417 / 0.283200 (0.033218) | 0.098234 / 0.141683 (-0.043449) | 1.494114 / 1.452155 (0.041959) | 1.566468 / 1.492716 (0.073751) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.221309 / 0.018006 (0.203303) | 0.440855 / 0.000490 (0.440365) | 0.003025 / 0.000200 (0.002825) | 0.000076 / 0.000054 (0.000021) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.026594 / 0.037411 (-0.010817) | 0.110406 / 0.014526 (0.095880) | 0.116117 / 0.176557 (-0.060439) | 0.173502 / 0.737135 (-0.563633) | 0.121988 / 0.296338 (-0.174351) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.403307 / 0.215209 (0.188098) | 4.034146 / 2.077655 (1.956492) | 1.852162 / 1.504120 (0.348042) | 1.675643 / 1.541195 (0.134448) | 1.748851 / 1.468490 (0.280360) | 0.703458 / 4.584777 (-3.881319) | 3.809055 / 3.745712 (0.063343) | 2.118060 / 5.269862 (-3.151801) | 1.338394 / 4.565676 (-3.227282) | 0.086319 / 0.424275 (-0.337956) | 0.012195 / 0.007607 (0.004588) | 0.520814 / 0.226044 (0.294769) | 5.201074 / 2.268929 (2.932145) | 2.418384 / 55.444624 (-53.026240) | 2.085496 / 6.876477 (-4.790980) | 2.245638 / 2.142072 (0.103565) | 0.849042 / 4.805227 (-3.956185) | 0.171912 / 6.500664 (-6.328752) | 0.065691 / 0.075469 (-0.009778) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.159985 / 1.841788 (-0.681803) | 14.910867 / 8.074308 (6.836559) | 14.473926 / 10.191392 (4.282534) | 0.181532 / 0.680424 (-0.498891) | 0.017203 / 0.534201 (-0.516998) | 0.420805 / 0.579283 (-0.158479) | 0.426455 / 0.434364 (-0.007909) | 0.497086 / 0.540337 (-0.043251) | 0.593909 / 1.386936 (-0.793027) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007688 / 0.011353 (-0.003665) | 0.005353 / 0.011008 (-0.005656) | 0.076869 / 0.038508 (0.038361) | 0.035030 / 0.023109 (0.011921) | 0.344649 / 0.275898 (0.068751) | 0.387669 / 0.323480 (0.064190) | 0.005913 / 0.007986 (-0.002072) | 0.004107 / 0.004328 (-0.000221) | 0.074111 / 0.004250 (0.069860) | 0.049351 / 0.037052 (0.012299) | 0.346061 / 0.258489 (0.087572) | 0.395499 / 0.293841 (0.101658) | 0.035549 / 0.128546 (-0.092997) | 0.012340 / 0.075646 (-0.063307) | 0.087031 / 0.419271 (-0.332241) | 0.049088 / 0.043533 (0.005556) | 0.342774 / 0.255139 (0.087635) | 0.362037 / 0.283200 (0.078837) | 0.100329 / 0.141683 (-0.041354) | 1.442349 / 1.452155 (-0.009806) | 1.551079 / 1.492716 (0.058363) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.228458 / 0.018006 (0.210452) | 0.446190 / 0.000490 (0.445701) | 0.000413 / 0.000200 (0.000213) | 0.000056 / 0.000054 (0.000001) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.029884 / 0.037411 (-0.007527) | 0.117527 / 0.014526 (0.103002) | 0.123221 / 0.176557 (-0.053335) | 0.172290 / 0.737135 (-0.564845) | 0.128682 / 0.296338 (-0.167657) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.420905 / 0.215209 (0.205696) | 4.199342 / 2.077655 (2.121687) | 2.007327 / 1.504120 (0.503207) | 1.814732 / 1.541195 (0.273537) | 1.893999 / 1.468490 (0.425509) | 0.712259 / 4.584777 (-3.872518) | 3.843402 / 3.745712 (0.097690) | 3.198514 / 5.269862 (-2.071348) | 1.678732 / 4.565676 (-2.886945) | 0.086435 / 0.424275 (-0.337840) | 0.012233 / 0.007607 (0.004626) | 0.526121 / 0.226044 (0.300077) | 5.190578 / 2.268929 (2.921650) | 2.473259 / 55.444624 (-52.971366) | 2.142795 / 6.876477 (-4.733682) | 2.277594 / 2.142072 (0.135521) | 0.846117 / 4.805227 (-3.959110) | 0.169458 / 6.500664 (-6.331206) | 0.065017 / 0.075469 (-0.010452) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.272479 / 1.841788 (-0.569309) | 15.086473 / 8.074308 (7.012165) | 14.659728 / 10.191392 (4.468336) | 0.163915 / 0.680424 (-0.516509) | 0.017561 / 0.534201 (-0.516640) | 0.422074 / 0.579283 (-0.157209) | 0.421963 / 0.434364 (-0.012401) | 0.490321 / 0.540337 (-0.050016) | 0.586854 / 1.386936 (-0.800083) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#e7ce0ac60c7efc10886471932854903a7c19f172 \"CML watermark\")\n" ]

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[ "Hi! I've merged a PR on the Hub with a fix: https://huggingface.co/datasets/fashion_mnist/discussions/3", "Thanks, this appears to have fixed the issue.\r\n\r\nI've created a PR for the same change in the mnist dataset: https://huggingface.co/datasets/mnist/discussions/3/files" ]

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[ "update the version. fix" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006479 / 0.011353 (-0.004874) | 0.004592 / 0.011008 (-0.006416) | 0.097239 / 0.038508 (0.058731) | 0.028609 / 0.023109 (0.005499) | 0.309225 / 0.275898 (0.033327) | 0.340015 / 0.323480 (0.016535) | 0.004857 / 0.007986 (-0.003129) | 0.004649 / 0.004328 (0.000320) | 0.074770 / 0.004250 (0.070520) | 0.038351 / 0.037052 (0.001299) | 0.313360 / 0.258489 (0.054871) | 0.350256 / 0.293841 (0.056416) | 0.030770 / 0.128546 (-0.097776) | 0.011591 / 0.075646 (-0.064055) | 0.322444 / 0.419271 (-0.096828) | 0.043704 / 0.043533 (0.000171) | 0.311790 / 0.255139 (0.056651) | 0.339183 / 0.283200 (0.055984) | 0.088041 / 0.141683 (-0.053642) | 1.490649 / 1.452155 (0.038494) | 1.561789 / 1.492716 (0.069072) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.208984 / 0.018006 (0.190978) | 0.406105 / 0.000490 (0.405616) | 0.003152 / 0.000200 (0.002952) | 0.000074 / 0.000054 (0.000019) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.022622 / 0.037411 (-0.014790) | 0.095819 / 0.014526 (0.081294) | 0.105132 / 0.176557 (-0.071424) | 0.165684 / 0.737135 (-0.571451) | 0.106706 / 0.296338 (-0.189632) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.426126 / 0.215209 (0.210917) | 4.233864 / 2.077655 (2.156209) | 1.918727 / 1.504120 (0.414607) | 1.729905 / 1.541195 (0.188710) | 1.760342 / 1.468490 (0.291852) | 0.695449 / 4.584777 (-3.889328) | 3.413531 / 3.745712 (-0.332181) | 1.904557 / 5.269862 (-3.365305) | 1.270604 / 4.565676 (-3.295072) | 0.083018 / 0.424275 (-0.341257) | 0.012760 / 0.007607 (0.005152) | 0.523991 / 0.226044 (0.297947) | 5.236132 / 2.268929 (2.967204) | 2.360959 / 55.444624 (-53.083665) | 1.996533 / 6.876477 (-4.879943) | 2.072934 / 2.142072 (-0.069138) | 0.804133 / 4.805227 (-4.001094) | 0.150976 / 6.500664 (-6.349688) | 0.065503 / 0.075469 (-0.009966) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.211828 / 1.841788 (-0.629960) | 13.657743 / 8.074308 (5.583435) | 13.887148 / 10.191392 (3.695756) | 0.145996 / 0.680424 (-0.534428) | 0.016562 / 0.534201 (-0.517639) | 0.380359 / 0.579283 (-0.198924) | 0.388698 / 0.434364 (-0.045666) | 0.440373 / 0.540337 (-0.099965) | 0.531753 / 1.386936 (-0.855183) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006444 / 0.011353 (-0.004909) | 0.004569 / 0.011008 (-0.006439) | 0.076239 / 0.038508 (0.037731) | 0.028462 / 0.023109 (0.005352) | 0.365540 / 0.275898 (0.089642) | 0.398242 / 0.323480 (0.074762) | 0.005785 / 0.007986 (-0.002200) | 0.003346 / 0.004328 (-0.000982) | 0.076296 / 0.004250 (0.072046) | 0.039853 / 0.037052 (0.002800) | 0.367684 / 0.258489 (0.109195) | 0.409570 / 0.293841 (0.115730) | 0.030536 / 0.128546 (-0.098010) | 0.011534 / 0.075646 (-0.064112) | 0.084962 / 0.419271 (-0.334309) | 0.042708 / 0.043533 (-0.000825) | 0.344058 / 0.255139 (0.088919) | 0.389096 / 0.283200 (0.105897) | 0.090559 / 0.141683 (-0.051124) | 1.507101 / 1.452155 (0.054946) | 1.563977 / 1.492716 (0.071260) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.228740 / 0.018006 (0.210734) | 0.396890 / 0.000490 (0.396400) | 0.000392 / 0.000200 (0.000192) | 0.000060 / 0.000054 (0.000006) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025052 / 0.037411 (-0.012360) | 0.099951 / 0.014526 (0.085426) | 0.106847 / 0.176557 (-0.069710) | 0.156666 / 0.737135 (-0.580469) | 0.110344 / 0.296338 (-0.185994) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.442363 / 0.215209 (0.227154) | 4.429571 / 2.077655 (2.351917) | 2.076501 / 1.504120 (0.572381) | 1.875226 / 1.541195 (0.334031) | 1.909093 / 1.468490 (0.440603) | 0.703047 / 4.584777 (-3.881730) | 3.457036 / 3.745712 (-0.288676) | 2.866648 / 5.269862 (-2.403214) | 1.524430 / 4.565676 (-3.041246) | 0.083687 / 0.424275 (-0.340588) | 0.012251 / 0.007607 (0.004643) | 0.543945 / 0.226044 (0.317901) | 5.440559 / 2.268929 (3.171630) | 2.522924 / 55.444624 (-52.921700) | 2.188770 / 6.876477 (-4.687707) | 2.249632 / 2.142072 (0.107559) | 0.813499 / 4.805227 (-3.991728) | 0.152861 / 6.500664 (-6.347803) | 0.067189 / 0.075469 (-0.008280) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.284255 / 1.841788 (-0.557533) | 14.207864 / 8.074308 (6.133556) | 14.279691 / 10.191392 (4.088299) | 0.167027 / 0.680424 (-0.513396) | 0.016455 / 0.534201 (-0.517746) | 0.380798 / 0.579283 (-0.198485) | 0.390013 / 0.434364 (-0.044351) | 0.445493 / 0.540337 (-0.094845) | 0.526278 / 1.386936 (-0.860658) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#3fdb46c526b9d070df0eb2d56b0ecacdace7cb9a \"CML watermark\")\n" ]

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[ "Problem with the code snippet! Using global vars and functions was not a good idea with iterable datasets!\r\n\r\nIf we update to:\r\n```python\r\nfrom datasets import load_dataset\r\n\r\noriginal_dataset = load_dataset(\"librispeech_asr\", \"clean\", split=\"validation\", streaming=True)\r\n\r\n# now add a new column to our streaming dataset using our hack\r\nname = \"new_column\"\r\ncolumn_1 = [f\"new dataset 1, row {i}\" for i in range(50)]\r\n\r\nnew_features = original_dataset.features.copy()\r\nnew_features[name] = new_features[\"file\"] # I know that \"file\" has the right column type to match our new feature\r\n\r\ndef add_column_fn_1(example, idx):\r\n if name in example:\r\n raise ValueError(f\"Error when adding {name}: column {name} is already in the dataset.\")\r\n return {name: column_1[idx]}\r\n\r\nmodified_dataset_1 = original_dataset.map(add_column_fn_1, with_indices=True, features=new_features)\r\n\r\n# now create a second modified dataset using the same trick\r\ncolumn_2 = [f\"new dataset 2, row {i}\" for i in range(50)]\r\n\r\ndef add_column_fn_2(example, idx):\r\n if name in example:\r\n raise ValueError(f\"Error when adding {name}: column {name} is already in the dataset.\")\r\n return {name: column_2[idx]}\r\n\r\nmodified_dataset_2 = original_dataset.map(add_column_fn_2, with_indices=True, features=new_features)\r\n\r\ninterleaved_dataset = interleave_datasets([modified_dataset_1, modified_dataset_2])\r\n\r\nfor i, sample in enumerate(interleaved_dataset):\r\n print(sample[\"new_column\"])\r\n if i == 10:\r\n break\r\n```\r\nwe get the correct outputs:\r\n```python\r\nnew dataset 1, row 0\r\nnew dataset 2, row 0\r\nnew dataset 1, row 1\r\nnew dataset 2, row 1\r\nnew dataset 1, row 2\r\nnew dataset 2, row 2\r\nnew dataset 1, row 3\r\nnew dataset 2, row 3\r\nnew dataset 1, row 4\r\nnew dataset 2, row 4\r\nnew dataset 1, row 5\r\n```\r\n" ]

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[ "I believe the issue resides in this line:\r\nhttps://github.com/huggingface/datasets/blob/7c3a9b057c476c40d157bd7a5d57f49066239df0/src/datasets/iterable_dataset.py#L1415\r\n\r\nIf we pass the **new** features of the dataset to the `.map` method we can return the features after adding a column, e.g.:\r\n```python\r\nfrom datasets import load_dataset, Value\r\n\r\noriginal_dataset = load_dataset(\"librispeech_asr\", \"clean\", split=\"validation\", streaming=True)\r\nprint(original_dataset.features.keys())\r\n\r\n# now add a new column to our streaming dataset using our hack\r\nname = \"new_column\"\r\ncolumn = [\"some random text\" for _ in range(50)]\r\n\r\nnew_features = original_dataset.features.copy()\r\nnew_features[name] = Value(dtype=\"string\", id=None) # I know the correct column type for this feature\r\n\r\ndef add_column_fn(example, idx):\r\n if name in example:\r\n raise ValueError(f\"Error when adding {name}: column {name} is already in the dataset.\")\r\n return {name: column[idx]}\r\n\r\nmodified_dataset = original_dataset.map(add_column_fn, with_indices=True, features=new_features)\r\n\r\nprint(modified_dataset.features.keys())\r\n```\r\n**Print Output:**\r\n```\r\ndict_keys(['file', 'audio', 'text', 'speaker_id', 'chapter_id', 'id'])\r\ndict_keys(['file', 'audio', 'text', 'speaker_id', 'chapter_id', 'id', 'new_column'])\r\n```\r\n" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.010459 / 0.011353 (-0.000894) | 0.007009 / 0.011008 (-0.003999) | 0.153885 / 0.038508 (0.115377) | 0.037308 / 0.023109 (0.014199) | 0.431931 / 0.275898 (0.156033) | 0.452940 / 0.323480 (0.129461) | 0.008572 / 0.007986 (0.000586) | 0.007479 / 0.004328 (0.003150) | 0.093835 / 0.004250 (0.089584) | 0.050172 / 0.037052 (0.013120) | 0.428855 / 0.258489 (0.170366) | 0.517814 / 0.293841 (0.223974) | 0.058558 / 0.128546 (-0.069988) | 0.019550 / 0.075646 (-0.056096) | 0.449837 / 0.419271 (0.030566) | 0.069710 / 0.043533 (0.026177) | 0.444163 / 0.255139 (0.189024) | 0.469003 / 0.283200 (0.185803) | 0.114665 / 0.141683 (-0.027018) | 1.822415 / 1.452155 (0.370261) | 1.956360 / 1.492716 (0.463644) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.237489 / 0.018006 (0.219483) | 0.556947 / 0.000490 (0.556457) | 0.006988 / 0.000200 (0.006789) | 0.000499 / 0.000054 (0.000444) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.037047 / 0.037411 (-0.000364) | 0.133973 / 0.014526 (0.119447) | 0.137072 / 0.176557 (-0.039485) | 0.201520 / 0.737135 (-0.535615) | 0.144177 / 0.296338 (-0.152161) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.694853 / 0.215209 (0.479644) | 6.805746 / 2.077655 (4.728091) | 2.717864 / 1.504120 (1.213744) | 2.360529 / 1.541195 (0.819335) | 2.384403 / 1.468490 (0.915913) | 1.337512 / 4.584777 (-3.247265) | 5.734090 / 3.745712 (1.988378) | 5.344909 / 5.269862 (0.075047) | 2.906218 / 4.565676 (-1.659458) | 0.160148 / 0.424275 (-0.264127) | 0.015159 / 0.007607 (0.007551) | 0.871356 / 0.226044 (0.645312) | 8.550965 / 2.268929 (6.282037) | 3.613522 / 55.444624 (-51.831103) | 2.868508 / 6.876477 (-4.007969) | 2.912263 / 2.142072 (0.770190) | 1.652548 / 4.805227 (-3.152680) | 0.274117 / 6.500664 (-6.226547) | 0.085911 / 0.075469 (0.010442) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.624798 / 1.841788 (-0.216989) | 18.413303 / 8.074308 (10.338995) | 21.742854 / 10.191392 (11.551462) | 0.255937 / 0.680424 (-0.424487) | 0.029492 / 0.534201 (-0.504709) | 0.541932 / 0.579283 (-0.037351) | 0.638594 / 0.434364 (0.204230) | 0.607427 / 0.540337 (0.067090) | 0.763046 / 1.386936 (-0.623890) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.020543 / 0.011353 (0.009190) | 0.006079 / 0.011008 (-0.004929) | 0.100558 / 0.038508 (0.062050) | 0.039474 / 0.023109 (0.016365) | 0.468889 / 0.275898 (0.192991) | 0.477731 / 0.323480 (0.154251) | 0.006999 / 0.007986 (-0.000987) | 0.005845 / 0.004328 (0.001516) | 0.110022 / 0.004250 (0.105772) | 0.056885 / 0.037052 (0.019833) | 0.447296 / 0.258489 (0.188807) | 0.489007 / 0.293841 (0.195166) | 0.055086 / 0.128546 (-0.073460) | 0.020623 / 0.075646 (-0.055024) | 0.129599 / 0.419271 (-0.289672) | 0.064316 / 0.043533 (0.020784) | 0.446681 / 0.255139 (0.191542) | 0.488897 / 0.283200 (0.205698) | 0.119121 / 0.141683 (-0.022562) | 1.836248 / 1.452155 (0.384093) | 2.002456 / 1.492716 (0.509740) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.249344 / 0.018006 (0.231338) | 0.544320 / 0.000490 (0.543830) | 0.000459 / 0.000200 (0.000259) | 0.000088 / 0.000054 (0.000034) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.038771 / 0.037411 (0.001359) | 0.129527 / 0.014526 (0.115002) | 0.144681 / 0.176557 (-0.031876) | 0.208237 / 0.737135 (-0.528898) | 0.149502 / 0.296338 (-0.146836) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.668457 / 0.215209 (0.453248) | 6.729550 / 2.077655 (4.651895) | 2.741076 / 1.504120 (1.236956) | 2.394737 / 1.541195 (0.853542) | 2.415242 / 1.468490 (0.946752) | 1.322334 / 4.584777 (-3.262442) | 5.787454 / 3.745712 (2.041742) | 3.309847 / 5.269862 (-1.960015) | 2.199181 / 4.565676 (-2.366495) | 0.170740 / 0.424275 (-0.253535) | 0.015095 / 0.007607 (0.007487) | 0.864157 / 0.226044 (0.638112) | 8.701858 / 2.268929 (6.432929) | 3.617966 / 55.444624 (-51.826658) | 2.847144 / 6.876477 (-4.029332) | 3.011391 / 2.142072 (0.869319) | 1.595466 / 4.805227 (-3.209762) | 0.284010 / 6.500664 (-6.216654) | 0.091054 / 0.075469 (0.015585) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.702404 / 1.841788 (-0.139384) | 19.427130 / 8.074308 (11.352822) | 21.900446 / 10.191392 (11.709053) | 0.244088 / 0.680424 (-0.436336) | 0.027428 / 0.534201 (-0.506773) | 0.552226 / 0.579283 (-0.027057) | 0.653102 / 0.434364 (0.218738) | 0.635379 / 0.540337 (0.095042) | 0.771842 / 1.386936 (-0.615094) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#efde2a0b9ad937defc83e0ac3f14bbb90fb5f345 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006547 / 0.011353 (-0.004806) | 0.004569 / 0.011008 (-0.006439) | 0.097782 / 0.038508 (0.059274) | 0.028157 / 0.023109 (0.005048) | 0.319017 / 0.275898 (0.043119) | 0.340758 / 0.323480 (0.017278) | 0.005078 / 0.007986 (-0.002907) | 0.003343 / 0.004328 (-0.000985) | 0.074194 / 0.004250 (0.069944) | 0.037918 / 0.037052 (0.000866) | 0.310298 / 0.258489 (0.051809) | 0.349441 / 0.293841 (0.055600) | 0.030375 / 0.128546 (-0.098171) | 0.011527 / 0.075646 (-0.064119) | 0.320499 / 0.419271 (-0.098773) | 0.042639 / 0.043533 (-0.000894) | 0.312182 / 0.255139 (0.057043) | 0.329058 / 0.283200 (0.045858) | 0.085517 / 0.141683 (-0.056165) | 1.532603 / 1.452155 (0.080448) | 1.583996 / 1.492716 (0.091279) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.208286 / 0.018006 (0.190280) | 0.418696 / 0.000490 (0.418206) | 0.007051 / 0.000200 (0.006851) | 0.000409 / 0.000054 (0.000354) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.024055 / 0.037411 (-0.013356) | 0.098420 / 0.014526 (0.083894) | 0.104785 / 0.176557 (-0.071771) | 0.163618 / 0.737135 (-0.573517) | 0.110006 / 0.296338 (-0.186332) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.418756 / 0.215209 (0.203547) | 4.179557 / 2.077655 (2.101902) | 1.881708 / 1.504120 (0.377588) | 1.683393 / 1.541195 (0.142198) | 1.731909 / 1.468490 (0.263419) | 0.696674 / 4.584777 (-3.888103) | 3.384167 / 3.745712 (-0.361545) | 3.173479 / 5.269862 (-2.096382) | 1.620019 / 4.565676 (-2.945658) | 0.082850 / 0.424275 (-0.341426) | 0.012396 / 0.007607 (0.004789) | 0.519743 / 0.226044 (0.293699) | 5.208480 / 2.268929 (2.939552) | 2.312917 / 55.444624 (-53.131708) | 1.963486 / 6.876477 (-4.912991) | 2.084553 / 2.142072 (-0.057519) | 0.805486 / 4.805227 (-3.999742) | 0.153429 / 6.500664 (-6.347235) | 0.069451 / 0.075469 (-0.006018) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.197185 / 1.841788 (-0.644603) | 14.341005 / 8.074308 (6.266696) | 14.476162 / 10.191392 (4.284770) | 0.157372 / 0.680424 (-0.523052) | 0.016444 / 0.534201 (-0.517757) | 0.383721 / 0.579283 (-0.195562) | 0.380800 / 0.434364 (-0.053564) | 0.441137 / 0.540337 (-0.099200) | 0.524778 / 1.386936 (-0.862158) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006728 / 0.011353 (-0.004625) | 0.004536 / 0.011008 (-0.006472) | 0.076266 / 0.038508 (0.037757) | 0.028133 / 0.023109 (0.005024) | 0.351072 / 0.275898 (0.075174) | 0.375823 / 0.323480 (0.052344) | 0.005166 / 0.007986 (-0.002819) | 0.004717 / 0.004328 (0.000388) | 0.076130 / 0.004250 (0.071880) | 0.041354 / 0.037052 (0.004301) | 0.345904 / 0.258489 (0.087415) | 0.384119 / 0.293841 (0.090278) | 0.030759 / 0.128546 (-0.097787) | 0.011659 / 0.075646 (-0.063988) | 0.085269 / 0.419271 (-0.334002) | 0.042161 / 0.043533 (-0.001372) | 0.340806 / 0.255139 (0.085667) | 0.366832 / 0.283200 (0.083632) | 0.092187 / 0.141683 (-0.049495) | 1.520035 / 1.452155 (0.067880) | 1.603856 / 1.492716 (0.111140) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.237763 / 0.018006 (0.219757) | 0.413406 / 0.000490 (0.412916) | 0.000415 / 0.000200 (0.000215) | 0.000060 / 0.000054 (0.000005) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.026095 / 0.037411 (-0.011317) | 0.105775 / 0.014526 (0.091249) | 0.108452 / 0.176557 (-0.068105) | 0.160014 / 0.737135 (-0.577122) | 0.112385 / 0.296338 (-0.183953) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.437327 / 0.215209 (0.222118) | 4.374949 / 2.077655 (2.297294) | 2.090292 / 1.504120 (0.586172) | 1.885946 / 1.541195 (0.344752) | 1.946768 / 1.468490 (0.478278) | 0.704124 / 4.584777 (-3.880653) | 3.394994 / 3.745712 (-0.350718) | 1.905189 / 5.269862 (-3.364673) | 1.182300 / 4.565676 (-3.383376) | 0.082920 / 0.424275 (-0.341355) | 0.012781 / 0.007607 (0.005174) | 0.535467 / 0.226044 (0.309423) | 5.362799 / 2.268929 (3.093870) | 2.504825 / 55.444624 (-52.939799) | 2.180458 / 6.876477 (-4.696019) | 2.317750 / 2.142072 (0.175677) | 0.811182 / 4.805227 (-3.994045) | 0.151654 / 6.500664 (-6.349010) | 0.067925 / 0.075469 (-0.007544) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.290746 / 1.841788 (-0.551042) | 14.799309 / 8.074308 (6.725001) | 14.439722 / 10.191392 (4.248330) | 0.144358 / 0.680424 (-0.536066) | 0.016688 / 0.534201 (-0.517513) | 0.392907 / 0.579283 (-0.186376) | 0.383109 / 0.434364 (-0.051255) | 0.450069 / 0.540337 (-0.090269) | 0.532534 / 1.386936 (-0.854402) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#87c061032972509a2a1b4103763e62fb74912128 \"CML watermark\")\n", "I turned it into a draft to fix the failing tests, but CI is now green, so there is no good reason for it :)" ]

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[ "`from_generator` expects a generator function, not a generator object, so this should work:\r\n```python\r\nfrom datasets import Dataset\r\nfrom google.cloud import bigquery\r\n\r\nclient = bigquery.Client()\r\n\r\ndef gen()\r\n # Perform a query.\r\n QUERY = (\r\n 'SELECT name FROM `bigquery-public-data.usa_names.usa_1910_2013` '\r\n 'WHERE state = \"TX\" '\r\n 'LIMIT 100')\r\n query_job = client.query(QUERY) # API request\r\n yield from query_job.result() # Waits for query to finish\r\n\r\nds = Dataset.from_generator(rows)\r\n\r\nfor r in ds:\r\n print(r)\r\n```", "@mariosasko your code was incomplete, so I tried to fix it:\r\n\r\n```py\r\nfrom datasets import Dataset\r\nfrom google.cloud import bigquery\r\n\r\nclient = bigquery.Client()\r\n\r\ndef gen():\r\n # Perform a query.\r\n QUERY = (\r\n 'SELECT name FROM `bigquery-public-data.usa_names.usa_1910_2013` '\r\n 'WHERE state = \"TX\" '\r\n 'LIMIT 100')\r\n query_job = client.query(QUERY) # API request\r\n yield from query_job.result() # Waits for query to finish\r\n\r\nds = Dataset.from_generator(gen)\r\n\r\nfor r in ds:\r\n print(r)\r\n```\r\n\r\nThe error is also present in this case:\r\n\r\n```\r\n_pickle.PicklingError: Pickling client objects is explicitly not supported.\r\nClients have non-trivial state that is local and unpickleable.\r\n```\r\n\r\nI think it doesn't matter if the generator is an object or a function. The problem is that the generator is referencing an object that is not pickable (the client in this case). ", "It does matter: this function expects a generator function, as stated in the docs.\r\n\r\nThis should work:\r\n```python\r\nfrom datasets import Dataset\r\nfrom google.cloud import bigquery\r\n\r\ndef gen():\r\n client = bigquery.Client()\r\n # Perform a query.\r\n QUERY = (\r\n 'SELECT name FROM `bigquery-public-data.usa_names.usa_1910_2013` '\r\n 'WHERE state = \"TX\" '\r\n 'LIMIT 100')\r\n query_job = client.query(QUERY) # API request\r\n yield from query_job.result() # Waits for query to finish\r\n\r\nds = Dataset.from_generator(gen)\r\n\r\nfor r in ds:\r\n print(r)\r\n```\r\n\r\nWe could allow passing non-picklable objects and use a random hash for the generated arrow file. In that case, the caching mechanism would not work, meaning repeated calls with the same set of arguments would generate new datasets instead of reusing the cached version, but this behavior is still better than raising an error.", "Thank you @mariosasko . Your last code is working indeed. Curiously, the important detail here was to wrap the client instantiation within the generator itself. If the line `client = bigquery.Client()` is moved outside, then the error is back.\r\n\r\nI see now also your point in regard to the generator being a generator function. We can close the issue if you want." ]

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[ "I got the same error, and the official website for visual genome is down. Did you solve this problem? ", "I am in the same situation now :( ", "Thanks for reporting, @gulnaz-zh.\r\n\r\nI am investigating it.", "The host server is down: https://visualgenome.org/\r\n\r\nWe are contacting the dataset authors.", "Apart form data host server being down, there is an additional issue with the `datasets` library introduced by this PR:\r\n- #5238\r\n\r\nI am working to fix it.", "PR that fixes the AttributeError: https://huggingface.co/datasets/visual_genome/discussions/2", "For the issue with their data host server being down, I have opened a discussion in the \"Community\" tab of the Hub dataset: https://huggingface.co/datasets/visual_genome/discussions/3\r\nLet's continue the discussion there.", "The authors just replied to us with their new URL: https://homes.cs.washington.edu/~ranjay/visualgenome/\r\n\r\nWe have fixed the datasets loading script, which is operative again." ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006461 / 0.011353 (-0.004892) | 0.004671 / 0.011008 (-0.006337) | 0.097329 / 0.038508 (0.058821) | 0.028380 / 0.023109 (0.005270) | 0.369892 / 0.275898 (0.093994) | 0.398244 / 0.323480 (0.074764) | 0.004795 / 0.007986 (-0.003190) | 0.004866 / 0.004328 (0.000538) | 0.075060 / 0.004250 (0.070809) | 0.035678 / 0.037052 (-0.001374) | 0.372197 / 0.258489 (0.113708) | 0.407509 / 0.293841 (0.113668) | 0.031557 / 0.128546 (-0.096989) | 0.011608 / 0.075646 (-0.064038) | 0.325467 / 0.419271 (-0.093805) | 0.042590 / 0.043533 (-0.000943) | 0.373738 / 0.255139 (0.118599) | 0.395793 / 0.283200 (0.112593) | 0.082335 / 0.141683 (-0.059348) | 1.471582 / 1.452155 (0.019427) | 1.535834 / 1.492716 (0.043117) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.192432 / 0.018006 (0.174426) | 0.404423 / 0.000490 (0.403933) | 0.003252 / 0.000200 (0.003052) | 0.000073 / 0.000054 (0.000018) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025312 / 0.037411 (-0.012099) | 0.099964 / 0.014526 (0.085438) | 0.108779 / 0.176557 (-0.067777) | 0.170438 / 0.737135 (-0.566697) | 0.110116 / 0.296338 (-0.186223) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.420402 / 0.215209 (0.205193) | 4.179142 / 2.077655 (2.101487) | 1.858114 / 1.504120 (0.353994) | 1.674452 / 1.541195 (0.133257) | 1.697839 / 1.468490 (0.229349) | 0.694707 / 4.584777 (-3.890070) | 3.394321 / 3.745712 (-0.351391) | 1.918437 / 5.269862 (-3.351425) | 1.277954 / 4.565676 (-3.287723) | 0.082357 / 0.424275 (-0.341918) | 0.012206 / 0.007607 (0.004598) | 0.522093 / 0.226044 (0.296049) | 5.239604 / 2.268929 (2.970675) | 2.347764 / 55.444624 (-53.096860) | 1.996864 / 6.876477 (-4.879613) | 2.050820 / 2.142072 (-0.091253) | 0.806110 / 4.805227 (-3.999118) | 0.151061 / 6.500664 (-6.349603) | 0.066438 / 0.075469 (-0.009031) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.211233 / 1.841788 (-0.630554) | 14.054422 / 8.074308 (5.980114) | 14.110141 / 10.191392 (3.918749) | 0.129962 / 0.680424 (-0.550462) | 0.017271 / 0.534201 (-0.516930) | 0.386410 / 0.579283 (-0.192873) | 0.392648 / 0.434364 (-0.041716) | 0.444940 / 0.540337 (-0.095398) | 0.533535 / 1.386936 (-0.853401) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006865 / 0.011353 (-0.004488) | 0.004662 / 0.011008 (-0.006346) | 0.077837 / 0.038508 (0.039329) | 0.028258 / 0.023109 (0.005149) | 0.346136 / 0.275898 (0.070238) | 0.380414 / 0.323480 (0.056934) | 0.005039 / 0.007986 (-0.002947) | 0.004967 / 0.004328 (0.000638) | 0.077774 / 0.004250 (0.073523) | 0.037504 / 0.037052 (0.000452) | 0.341550 / 0.258489 (0.083061) | 0.382494 / 0.293841 (0.088653) | 0.031881 / 0.128546 (-0.096665) | 0.011746 / 0.075646 (-0.063901) | 0.087087 / 0.419271 (-0.332185) | 0.043108 / 0.043533 (-0.000425) | 0.344103 / 0.255139 (0.088964) | 0.366613 / 0.283200 (0.083413) | 0.090399 / 0.141683 (-0.051284) | 1.492675 / 1.452155 (0.040520) | 1.588666 / 1.492716 (0.095950) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.191859 / 0.018006 (0.173853) | 0.412514 / 0.000490 (0.412025) | 0.001953 / 0.000200 (0.001753) | 0.000084 / 0.000054 (0.000030) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025159 / 0.037411 (-0.012252) | 0.100125 / 0.014526 (0.085599) | 0.106000 / 0.176557 (-0.070556) | 0.160710 / 0.737135 (-0.576425) | 0.110449 / 0.296338 (-0.185889) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.436636 / 0.215209 (0.221427) | 4.364597 / 2.077655 (2.286942) | 2.077492 / 1.504120 (0.573372) | 1.868248 / 1.541195 (0.327053) | 1.911218 / 1.468490 (0.442728) | 0.700306 / 4.584777 (-3.884471) | 3.385428 / 3.745712 (-0.360284) | 2.965384 / 5.269862 (-2.304478) | 1.522093 / 4.565676 (-3.043583) | 0.082805 / 0.424275 (-0.341470) | 0.012432 / 0.007607 (0.004825) | 0.538478 / 0.226044 (0.312433) | 5.383207 / 2.268929 (3.114278) | 2.525177 / 55.444624 (-52.919447) | 2.179632 / 6.876477 (-4.696845) | 2.280768 / 2.142072 (0.138695) | 0.805869 / 4.805227 (-3.999358) | 0.152716 / 6.500664 (-6.347948) | 0.067848 / 0.075469 (-0.007621) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.318899 / 1.841788 (-0.522889) | 14.416310 / 8.074308 (6.342002) | 14.172804 / 10.191392 (3.981412) | 0.141729 / 0.680424 (-0.538695) | 0.016785 / 0.534201 (-0.517416) | 0.378626 / 0.579283 (-0.200657) | 0.387153 / 0.434364 (-0.047211) | 0.439950 / 0.540337 (-0.100388) | 0.523958 / 1.386936 (-0.862978) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#7c3a9b057c476c40d157bd7a5d57f49066239df0 \"CML watermark\")\n" ]

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[ "Have met the same problem with datasets==2.8.0, pandas==2.0.0. It could be solved by installing the latest version of datasets or using datasets==2.8.0, pandas==1.5.3.", "Pandas 2.0.0 has removed support to passing `mangle_dupe_cols`.\r\n\r\nHowever, our `datasets` library does not use this parameter: it only passes it to pandas if the user passes it to `load_dataset`.\r\n\r\nYou should better:\r\n- Either \"take steps to stop the use of 'mangle_dupe_cols'\" (as it was suggested in the deprecation warning in pandas-1.5.3)\r\n- Or pin pandas (< 2.0.0) in your local requirements file\r\n\r\nPlease note that from `datasets` library, we don't want to force users to use a specific pandas version. We would like to support users as well:\r\n- that use pandas < 1.5.3\r\n- that use pandas >= 2.0.0 and that do not pass the 'mangle_dupe_cols' parameter", "`datasets` 2.11 doesn't pass `mangle_dupe_cols` unless the user specifies it indeed, so I think we're fine" ]

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[ "Thanks for reporting, @keyboardAnt.\r\n\r\nWe haven't noticed any crash in our CI tests. Could you please indicate specifically the `load_dataset` command that crashes in your side, so that we can reproduce it?", "This has been fixed in `datasets` 2.11" ]

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[ "We no longer depend on `dataclasses` (for almost a year), so I don't think our package is the problematic one. \r\n\r\nI think it makes more sense to raise this issue in the `dataclasses` repo: https://github.com/ericvsmith/dataclasses." ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006693 / 0.011353 (-0.004660) | 0.004586 / 0.011008 (-0.006422) | 0.097238 / 0.038508 (0.058730) | 0.027912 / 0.023109 (0.004802) | 0.347339 / 0.275898 (0.071441) | 0.393847 / 0.323480 (0.070368) | 0.005105 / 0.007986 (-0.002880) | 0.004750 / 0.004328 (0.000422) | 0.074671 / 0.004250 (0.070421) | 0.037912 / 0.037052 (0.000860) | 0.368973 / 0.258489 (0.110483) | 0.403983 / 0.293841 (0.110142) | 0.030817 / 0.128546 (-0.097730) | 0.011813 / 0.075646 (-0.063833) | 0.324470 / 0.419271 (-0.094802) | 0.044232 / 0.043533 (0.000699) | 0.347623 / 0.255139 (0.092484) | 0.382458 / 0.283200 (0.099259) | 0.086603 / 0.141683 (-0.055080) | 1.485778 / 1.452155 (0.033623) | 1.549776 / 1.492716 (0.057059) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.200154 / 0.018006 (0.182147) | 0.440645 / 0.000490 (0.440155) | 0.003664 / 0.000200 (0.003464) | 0.000069 / 0.000054 (0.000015) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023635 / 0.037411 (-0.013776) | 0.094969 / 0.014526 (0.080443) | 0.103630 / 0.176557 (-0.072927) | 0.168655 / 0.737135 (-0.568480) | 0.105850 / 0.296338 (-0.190488) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.425224 / 0.215209 (0.210015) | 4.236618 / 2.077655 (2.158963) | 1.917091 / 1.504120 (0.412971) | 1.746984 / 1.541195 (0.205789) | 1.817766 / 1.468490 (0.349276) | 0.700989 / 4.584777 (-3.883788) | 3.412577 / 3.745712 (-0.333135) | 3.049311 / 5.269862 (-2.220551) | 1.607692 / 4.565676 (-2.957984) | 0.083410 / 0.424275 (-0.340865) | 0.012601 / 0.007607 (0.004994) | 0.528244 / 0.226044 (0.302200) | 5.284134 / 2.268929 (3.015206) | 2.391885 / 55.444624 (-53.052740) | 2.020018 / 6.876477 (-4.856459) | 2.105908 / 2.142072 (-0.036164) | 0.801262 / 4.805227 (-4.003965) | 0.151467 / 6.500664 (-6.349197) | 0.066529 / 0.075469 (-0.008940) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.203894 / 1.841788 (-0.637894) | 13.827561 / 8.074308 (5.753253) | 14.136730 / 10.191392 (3.945338) | 0.143829 / 0.680424 (-0.536595) | 0.016410 / 0.534201 (-0.517791) | 0.378194 / 0.579283 (-0.201089) | 0.391235 / 0.434364 (-0.043129) | 0.439261 / 0.540337 (-0.101076) | 0.527181 / 1.386936 (-0.859755) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006639 / 0.011353 (-0.004714) | 0.004469 / 0.011008 (-0.006540) | 0.076495 / 0.038508 (0.037987) | 0.027880 / 0.023109 (0.004771) | 0.342807 / 0.275898 (0.066909) | 0.374258 / 0.323480 (0.050778) | 0.005543 / 0.007986 (-0.002443) | 0.003362 / 0.004328 (-0.000966) | 0.075064 / 0.004250 (0.070813) | 0.039209 / 0.037052 (0.002156) | 0.342490 / 0.258489 (0.084001) | 0.382135 / 0.293841 (0.088294) | 0.030356 / 0.128546 (-0.098191) | 0.011762 / 0.075646 (-0.063884) | 0.086031 / 0.419271 (-0.333241) | 0.041991 / 0.043533 (-0.001542) | 0.340323 / 0.255139 (0.085184) | 0.364160 / 0.283200 (0.080961) | 0.088483 / 0.141683 (-0.053200) | 1.502836 / 1.452155 (0.050681) | 1.570438 / 1.492716 (0.077722) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.218486 / 0.018006 (0.200480) | 0.405251 / 0.000490 (0.404761) | 0.000398 / 0.000200 (0.000198) | 0.000062 / 0.000054 (0.000008) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025738 / 0.037411 (-0.011673) | 0.100390 / 0.014526 (0.085864) | 0.109913 / 0.176557 (-0.066644) | 0.161310 / 0.737135 (-0.575826) | 0.113269 / 0.296338 (-0.183069) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.438083 / 0.215209 (0.222874) | 4.377742 / 2.077655 (2.300087) | 2.069949 / 1.504120 (0.565829) | 1.857807 / 1.541195 (0.316613) | 1.881315 / 1.468490 (0.412825) | 0.695373 / 4.584777 (-3.889404) | 3.440287 / 3.745712 (-0.305425) | 1.842888 / 5.269862 (-3.426973) | 1.146655 / 4.565676 (-3.419022) | 0.083386 / 0.424275 (-0.340889) | 0.012290 / 0.007607 (0.004683) | 0.545672 / 0.226044 (0.319628) | 5.469568 / 2.268929 (3.200639) | 2.511886 / 55.444624 (-52.932739) | 2.184210 / 6.876477 (-4.692267) | 2.329822 / 2.142072 (0.187749) | 0.804114 / 4.805227 (-4.001114) | 0.151651 / 6.500664 (-6.349013) | 0.067269 / 0.075469 (-0.008200) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.272564 / 1.841788 (-0.569223) | 14.180708 / 8.074308 (6.106400) | 14.181657 / 10.191392 (3.990265) | 0.131443 / 0.680424 (-0.548981) | 0.016513 / 0.534201 (-0.517688) | 0.383786 / 0.579283 (-0.195497) | 0.397678 / 0.434364 (-0.036686) | 0.447003 / 0.540337 (-0.093334) | 0.539453 / 1.386936 (-0.847483) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#649d5a3315f9e7666713b6affe318ee00c7163a0 \"CML watermark\")\n" ]

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[ "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007448 / 0.011353 (-0.003905) | 0.005182 / 0.011008 (-0.005826) | 0.098718 / 0.038508 (0.060210) | 0.034594 / 0.023109 (0.011485) | 0.317301 / 0.275898 (0.041403) | 0.357800 / 0.323480 (0.034320) | 0.005860 / 0.007986 (-0.002126) | 0.004267 / 0.004328 (-0.000061) | 0.074876 / 0.004250 (0.070626) | 0.048002 / 0.037052 (0.010950) | 0.333360 / 0.258489 (0.074871) | 0.362080 / 0.293841 (0.068239) | 0.035957 / 0.128546 (-0.092589) | 0.012245 / 0.075646 (-0.063401) | 0.332970 / 0.419271 (-0.086301) | 0.050825 / 0.043533 (0.007293) | 0.313936 / 0.255139 (0.058797) | 0.340684 / 0.283200 (0.057485) | 0.106630 / 0.141683 (-0.035053) | 1.427898 / 1.452155 (-0.024257) | 1.547518 / 1.492716 (0.054801) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.296952 / 0.018006 (0.278945) | 0.515708 / 0.000490 (0.515218) | 0.004225 / 0.000200 (0.004025) | 0.000082 / 0.000054 (0.000027) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.029365 / 0.037411 (-0.008046) | 0.111142 / 0.014526 (0.096616) | 0.124414 / 0.176557 (-0.052142) | 0.185227 / 0.737135 (-0.551908) | 0.129545 / 0.296338 (-0.166793) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.403303 / 0.215209 (0.188094) | 4.044138 / 2.077655 (1.966483) | 1.803622 / 1.504120 (0.299502) | 1.615436 / 1.541195 (0.074242) | 1.703576 / 1.468490 (0.235086) | 0.706398 / 4.584777 (-3.878379) | 3.912995 / 3.745712 (0.167283) | 4.004575 / 5.269862 (-1.265287) | 2.101592 / 4.565676 (-2.464085) | 0.087280 / 0.424275 (-0.336995) | 0.012564 / 0.007607 (0.004957) | 0.508484 / 0.226044 (0.282440) | 5.089351 / 2.268929 (2.820422) | 2.269022 / 55.444624 (-53.175602) | 1.933375 / 6.876477 (-4.943102) | 2.136783 / 2.142072 (-0.005289) | 0.862624 / 4.805227 (-3.942603) | 0.172107 / 6.500664 (-6.328557) | 0.066694 / 0.075469 (-0.008775) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.172513 / 1.841788 (-0.669275) | 15.877519 / 8.074308 (7.803211) | 14.687476 / 10.191392 (4.496084) | 0.189392 / 0.680424 (-0.491032) | 0.017334 / 0.534201 (-0.516866) | 0.420201 / 0.579283 (-0.159082) | 0.418502 / 0.434364 (-0.015862) | 0.489130 / 0.540337 (-0.051207) | 0.580678 / 1.386936 (-0.806258) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007942 / 0.011353 (-0.003411) | 0.005312 / 0.011008 (-0.005696) | 0.074684 / 0.038508 (0.036176) | 0.035952 / 0.023109 (0.012843) | 0.349672 / 0.275898 (0.073774) | 0.377157 / 0.323480 (0.053678) | 0.006399 / 0.007986 (-0.001586) | 0.005769 / 0.004328 (0.001441) | 0.074283 / 0.004250 (0.070032) | 0.053217 / 0.037052 (0.016165) | 0.342545 / 0.258489 (0.084056) | 0.383663 / 0.293841 (0.089822) | 0.037234 / 0.128546 (-0.091312) | 0.012349 / 0.075646 (-0.063298) | 0.086522 / 0.419271 (-0.332749) | 0.049888 / 0.043533 (0.006355) | 0.337686 / 0.255139 (0.082547) | 0.361564 / 0.283200 (0.078365) | 0.104902 / 0.141683 (-0.036781) | 1.478259 / 1.452155 (0.026104) | 1.576376 / 1.492716 (0.083660) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.339760 / 0.018006 (0.321753) | 0.530946 / 0.000490 (0.530456) | 0.000474 / 0.000200 (0.000274) | 0.000063 / 0.000054 (0.000008) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.029685 / 0.037411 (-0.007726) | 0.109409 / 0.014526 (0.094883) | 0.125579 / 0.176557 (-0.050978) | 0.175378 / 0.737135 (-0.561757) | 0.130672 / 0.296338 (-0.165667) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.428456 / 0.215209 (0.213247) | 4.238731 / 2.077655 (2.161077) | 2.046703 / 1.504120 (0.542583) | 1.850701 / 1.541195 (0.309506) | 1.909290 / 1.468490 (0.440800) | 0.714314 / 4.584777 (-3.870463) | 3.816056 / 3.745712 (0.070344) | 2.118567 / 5.269862 (-3.151295) | 1.348017 / 4.565676 (-3.217659) | 0.087140 / 0.424275 (-0.337135) | 0.012546 / 0.007607 (0.004938) | 0.538041 / 0.226044 (0.311997) | 5.381822 / 2.268929 (3.112893) | 2.525685 / 55.444624 (-52.918939) | 2.178659 / 6.876477 (-4.697817) | 2.381054 / 2.142072 (0.238981) | 0.844404 / 4.805227 (-3.960823) | 0.171802 / 6.500664 (-6.328862) | 0.065630 / 0.075469 (-0.009839) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.262187 / 1.841788 (-0.579600) | 16.197668 / 8.074308 (8.123360) | 15.148636 / 10.191392 (4.957244) | 0.152601 / 0.680424 (-0.527823) | 0.020238 / 0.534201 (-0.513963) | 0.420141 / 0.579283 (-0.159142) | 0.416295 / 0.434364 (-0.018068) | 0.487051 / 0.540337 (-0.053286) | 0.581942 / 1.386936 (-0.804994) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#9615e5af75b190c4e7b66792f9ba444f352765a0 \"CML watermark\")\n" ]

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[ "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007003 / 0.011353 (-0.004350) | 0.004854 / 0.011008 (-0.006154) | 0.096982 / 0.038508 (0.058474) | 0.033218 / 0.023109 (0.010109) | 0.314088 / 0.275898 (0.038190) | 0.351315 / 0.323480 (0.027835) | 0.005679 / 0.007986 (-0.002307) | 0.005404 / 0.004328 (0.001075) | 0.071773 / 0.004250 (0.067522) | 0.044593 / 0.037052 (0.007540) | 0.323643 / 0.258489 (0.065154) | 0.357172 / 0.293841 (0.063331) | 0.036782 / 0.128546 (-0.091764) | 0.012146 / 0.075646 (-0.063501) | 0.334874 / 0.419271 (-0.084397) | 0.051475 / 0.043533 (0.007942) | 0.305949 / 0.255139 (0.050810) | 0.339326 / 0.283200 (0.056126) | 0.101509 / 0.141683 (-0.040174) | 1.458254 / 1.452155 (0.006099) | 1.535252 / 1.492716 (0.042535) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.264837 / 0.018006 (0.246831) | 0.441444 / 0.000490 (0.440955) | 0.003331 / 0.000200 (0.003131) | 0.000084 / 0.000054 (0.000030) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.026529 / 0.037411 (-0.010882) | 0.105924 / 0.014526 (0.091398) | 0.117191 / 0.176557 (-0.059365) | 0.176606 / 0.737135 (-0.560529) | 0.123452 / 0.296338 (-0.172887) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.412351 / 0.215209 (0.197142) | 4.135468 / 2.077655 (2.057813) | 1.912820 / 1.504120 (0.408700) | 1.738993 / 1.541195 (0.197798) | 1.754228 / 1.468490 (0.285738) | 0.692239 / 4.584777 (-3.892538) | 3.765672 / 3.745712 (0.019959) | 2.081141 / 5.269862 (-3.188720) | 1.425153 / 4.565676 (-3.140523) | 0.085055 / 0.424275 (-0.339220) | 0.011918 / 0.007607 (0.004311) | 0.517573 / 0.226044 (0.291529) | 5.179809 / 2.268929 (2.910881) | 2.471620 / 55.444624 (-52.973005) | 2.140634 / 6.876477 (-4.735843) | 2.200150 / 2.142072 (0.058077) | 0.831662 / 4.805227 (-3.973566) | 0.168828 / 6.500664 (-6.331836) | 0.062755 / 0.075469 (-0.012714) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.196890 / 1.841788 (-0.644898) | 14.826423 / 8.074308 (6.752114) | 14.020782 / 10.191392 (3.829390) | 0.161275 / 0.680424 (-0.519149) | 0.017467 / 0.534201 (-0.516734) | 0.422278 / 0.579283 (-0.157005) | 0.424053 / 0.434364 (-0.010311) | 0.490768 / 0.540337 (-0.049570) | 0.584490 / 1.386936 (-0.802446) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007102 / 0.011353 (-0.004250) | 0.005145 / 0.011008 (-0.005863) | 0.073823 / 0.038508 (0.035315) | 0.032947 / 0.023109 (0.009838) | 0.336978 / 0.275898 (0.061080) | 0.368961 / 0.323480 (0.045481) | 0.006052 / 0.007986 (-0.001934) | 0.003970 / 0.004328 (-0.000358) | 0.072925 / 0.004250 (0.068674) | 0.044502 / 0.037052 (0.007450) | 0.340849 / 0.258489 (0.082360) | 0.381487 / 0.293841 (0.087646) | 0.037207 / 0.128546 (-0.091339) | 0.012095 / 0.075646 (-0.063551) | 0.085206 / 0.419271 (-0.334065) | 0.056236 / 0.043533 (0.012703) | 0.334048 / 0.255139 (0.078909) | 0.360442 / 0.283200 (0.077242) | 0.104402 / 0.141683 (-0.037281) | 1.446907 / 1.452155 (-0.005248) | 1.542430 / 1.492716 (0.049713) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.238720 / 0.018006 (0.220714) | 0.445857 / 0.000490 (0.445367) | 0.009280 / 0.000200 (0.009080) | 0.000150 / 0.000054 (0.000095) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.028414 / 0.037411 (-0.008998) | 0.110506 / 0.014526 (0.095981) | 0.124593 / 0.176557 (-0.051964) | 0.170951 / 0.737135 (-0.566184) | 0.128033 / 0.296338 (-0.168305) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.426206 / 0.215209 (0.210997) | 4.267289 / 2.077655 (2.189634) | 2.026880 / 1.504120 (0.522760) | 1.844052 / 1.541195 (0.302858) | 1.897697 / 1.468490 (0.429207) | 0.713545 / 4.584777 (-3.871232) | 3.815052 / 3.745712 (0.069339) | 3.217091 / 5.269862 (-2.052770) | 1.790546 / 4.565676 (-2.775130) | 0.087501 / 0.424275 (-0.336774) | 0.012136 / 0.007607 (0.004529) | 0.534495 / 0.226044 (0.308451) | 5.325913 / 2.268929 (3.056984) | 2.484309 / 55.444624 (-52.960315) | 2.149721 / 6.876477 (-4.726756) | 2.158764 / 2.142072 (0.016692) | 0.855273 / 4.805227 (-3.949954) | 0.170374 / 6.500664 (-6.330290) | 0.064053 / 0.075469 (-0.011416) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.253171 / 1.841788 (-0.588617) | 15.254562 / 8.074308 (7.180254) | 14.242119 / 10.191392 (4.050727) | 0.159298 / 0.680424 (-0.521126) | 0.017504 / 0.534201 (-0.516696) | 0.419710 / 0.579283 (-0.159574) | 0.417879 / 0.434364 (-0.016485) | 0.486328 / 0.540337 (-0.054009) | 0.578933 / 1.386936 (-0.808003) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#bc38663c8e2c2b0b246791c3ed8bddbff163dd64 \"CML watermark\")\n", "_The documentation is not available anymore as the PR was closed or merged._", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.008476 / 0.011353 (-0.002877) | 0.005745 / 0.011008 (-0.005263) | 0.115307 / 0.038508 (0.076799) | 0.039356 / 0.023109 (0.016247) | 0.367155 / 0.275898 (0.091257) | 0.422147 / 0.323480 (0.098667) | 0.006817 / 0.007986 (-0.001168) | 0.004652 / 0.004328 (0.000323) | 0.084045 / 0.004250 (0.079795) | 0.055483 / 0.037052 (0.018431) | 0.364249 / 0.258489 (0.105760) | 0.415975 / 0.293841 (0.122134) | 0.041322 / 0.128546 (-0.087224) | 0.014178 / 0.075646 (-0.061469) | 0.392658 / 0.419271 (-0.026614) | 0.060156 / 0.043533 (0.016623) | 0.373938 / 0.255139 (0.118799) | 0.397494 / 0.283200 (0.114294) | 0.113811 / 0.141683 (-0.027872) | 1.688581 / 1.452155 (0.236427) | 1.790374 / 1.492716 (0.297658) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.222203 / 0.018006 (0.204196) | 0.471109 / 0.000490 (0.470619) | 0.007071 / 0.000200 (0.006871) | 0.000156 / 0.000054 (0.000102) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.032112 / 0.037411 (-0.005299) | 0.118726 / 0.014526 (0.104200) | 0.134918 / 0.176557 (-0.041639) | 0.207766 / 0.737135 (-0.529369) | 0.139756 / 0.296338 (-0.156582) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.479858 / 0.215209 (0.264649) | 4.798428 / 2.077655 (2.720773) | 2.221573 / 1.504120 (0.717453) | 1.964956 / 1.541195 (0.423761) | 2.021763 / 1.468490 (0.553273) | 0.820401 / 4.584777 (-3.764376) | 4.533887 / 3.745712 (0.788175) | 4.121332 / 5.269862 (-1.148529) | 2.195807 / 4.565676 (-2.369869) | 0.103133 / 0.424275 (-0.321142) | 0.014620 / 0.007607 (0.007013) | 0.605012 / 0.226044 (0.378967) | 5.966623 / 2.268929 (3.697694) | 2.844118 / 55.444624 (-52.600506) | 2.463569 / 6.876477 (-4.412907) | 2.597177 / 2.142072 (0.455105) | 0.983201 / 4.805227 (-3.822026) | 0.199500 / 6.500664 (-6.301164) | 0.078387 / 0.075469 (0.002918) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.401083 / 1.841788 (-0.440705) | 17.258725 / 8.074308 (9.184417) | 16.825992 / 10.191392 (6.634600) | 0.216762 / 0.680424 (-0.463662) | 0.021135 / 0.534201 (-0.513066) | 0.513688 / 0.579283 (-0.065595) | 0.488892 / 0.434364 (0.054529) | 0.566745 / 0.540337 (0.026408) | 0.688958 / 1.386936 (-0.697978) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007948 / 0.011353 (-0.003405) | 0.005981 / 0.011008 (-0.005027) | 0.084474 / 0.038508 (0.045966) | 0.037952 / 0.023109 (0.014843) | 0.383359 / 0.275898 (0.107461) | 0.409324 / 0.323480 (0.085844) | 0.006641 / 0.007986 (-0.001344) | 0.004785 / 0.004328 (0.000456) | 0.083214 / 0.004250 (0.078964) | 0.053177 / 0.037052 (0.016125) | 0.393147 / 0.258489 (0.134658) | 0.438496 / 0.293841 (0.144655) | 0.042090 / 0.128546 (-0.086456) | 0.013373 / 0.075646 (-0.062273) | 0.097585 / 0.419271 (-0.321686) | 0.056359 / 0.043533 (0.012826) | 0.378113 / 0.255139 (0.122974) | 0.403874 / 0.283200 (0.120674) | 0.123503 / 0.141683 (-0.018180) | 1.639557 / 1.452155 (0.187403) | 1.759787 / 1.492716 (0.267071) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.242534 / 0.018006 (0.224528) | 0.459040 / 0.000490 (0.458550) | 0.000454 / 0.000200 (0.000254) | 0.000066 / 0.000054 (0.000011) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.031747 / 0.037411 (-0.005664) | 0.125823 / 0.014526 (0.111297) | 0.138985 / 0.176557 (-0.037571) | 0.194371 / 0.737135 (-0.542764) | 0.148905 / 0.296338 (-0.147433) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.508201 / 0.215209 (0.292992) | 5.007519 / 2.077655 (2.929865) | 2.412956 / 1.504120 (0.908836) | 2.143378 / 1.541195 (0.602183) | 2.192966 / 1.468490 (0.724476) | 0.828497 / 4.584777 (-3.756280) | 4.496457 / 3.745712 (0.750745) | 2.397546 / 5.269862 (-2.872315) | 1.522889 / 4.565676 (-3.042787) | 0.099904 / 0.424275 (-0.324371) | 0.014561 / 0.007607 (0.006954) | 0.627417 / 0.226044 (0.401373) | 6.296441 / 2.268929 (4.027512) | 2.962858 / 55.444624 (-52.481767) | 2.543083 / 6.876477 (-4.333394) | 2.711884 / 2.142072 (0.569811) | 0.997969 / 4.805227 (-3.807259) | 0.200283 / 6.500664 (-6.300382) | 0.075934 / 0.075469 (0.000465) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.541707 / 1.841788 (-0.300081) | 17.791559 / 8.074308 (9.717251) | 16.782877 / 10.191392 (6.591485) | 0.171954 / 0.680424 (-0.508470) | 0.020506 / 0.534201 (-0.513695) | 0.504189 / 0.579283 (-0.075094) | 0.501655 / 0.434364 (0.067291) | 0.583120 / 0.540337 (0.042782) | 0.694931 / 1.386936 (-0.692005) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#53355f308f4ffb9b4071f5d420b5c6767799ef1c \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007613 / 0.011353 (-0.003740) | 0.005057 / 0.011008 (-0.005951) | 0.099147 / 0.038508 (0.060639) | 0.035358 / 0.023109 (0.012249) | 0.303442 / 0.275898 (0.027544) | 0.336898 / 0.323480 (0.013418) | 0.006216 / 0.007986 (-0.001770) | 0.004085 / 0.004328 (-0.000244) | 0.074567 / 0.004250 (0.070317) | 0.050917 / 0.037052 (0.013865) | 0.301786 / 0.258489 (0.043297) | 0.341362 / 0.293841 (0.047521) | 0.037019 / 0.128546 (-0.091528) | 0.011977 / 0.075646 (-0.063669) | 0.334688 / 0.419271 (-0.084583) | 0.051326 / 0.043533 (0.007793) | 0.299878 / 0.255139 (0.044739) | 0.325571 / 0.283200 (0.042371) | 0.110744 / 0.141683 (-0.030939) | 1.480898 / 1.452155 (0.028743) | 1.566917 / 1.492716 (0.074201) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.253249 / 0.018006 (0.235242) | 0.558576 / 0.000490 (0.558086) | 0.003838 / 0.000200 (0.003638) | 0.000085 / 0.000054 (0.000030) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.028731 / 0.037411 (-0.008681) | 0.110643 / 0.014526 (0.096117) | 0.119560 / 0.176557 (-0.056996) | 0.178010 / 0.737135 (-0.559126) | 0.130286 / 0.296338 (-0.166053) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.400190 / 0.215209 (0.184981) | 3.999326 / 2.077655 (1.921672) | 1.797332 / 1.504120 (0.293212) | 1.610808 / 1.541195 (0.069613) | 1.679949 / 1.468490 (0.211459) | 0.696539 / 4.584777 (-3.888238) | 3.784766 / 3.745712 (0.039054) | 2.205008 / 5.269862 (-3.064854) | 1.501697 / 4.565676 (-3.063979) | 0.085553 / 0.424275 (-0.338723) | 0.012223 / 0.007607 (0.004616) | 0.494858 / 0.226044 (0.268813) | 4.968535 / 2.268929 (2.699606) | 2.258759 / 55.444624 (-53.185865) | 1.926236 / 6.876477 (-4.950241) | 2.072155 / 2.142072 (-0.069917) | 0.838354 / 4.805227 (-3.966873) | 0.168810 / 6.500664 (-6.331854) | 0.064347 / 0.075469 (-0.011122) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.166696 / 1.841788 (-0.675091) | 14.721287 / 8.074308 (6.646979) | 14.319272 / 10.191392 (4.127880) | 0.144534 / 0.680424 (-0.535890) | 0.017502 / 0.534201 (-0.516699) | 0.422682 / 0.579283 (-0.156601) | 0.424426 / 0.434364 (-0.009938) | 0.493561 / 0.540337 (-0.046777) | 0.586765 / 1.386936 (-0.800171) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.007764 / 0.011353 (-0.003589) | 0.005516 / 0.011008 (-0.005492) | 0.074745 / 0.038508 (0.036237) | 0.034364 / 0.023109 (0.011255) | 0.344318 / 0.275898 (0.068420) | 0.374779 / 0.323480 (0.051299) | 0.005904 / 0.007986 (-0.002082) | 0.004323 / 0.004328 (-0.000005) | 0.073191 / 0.004250 (0.068941) | 0.051549 / 0.037052 (0.014496) | 0.341792 / 0.258489 (0.083303) | 0.387576 / 0.293841 (0.093735) | 0.037483 / 0.128546 (-0.091063) | 0.012410 / 0.075646 (-0.063237) | 0.086480 / 0.419271 (-0.332791) | 0.050035 / 0.043533 (0.006502) | 0.335475 / 0.255139 (0.080336) | 0.361436 / 0.283200 (0.078236) | 0.106890 / 0.141683 (-0.034792) | 1.464032 / 1.452155 (0.011877) | 1.563490 / 1.492716 (0.070774) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.268765 / 0.018006 (0.250758) | 0.563811 / 0.000490 (0.563321) | 0.004904 / 0.000200 (0.004704) | 0.000096 / 0.000054 (0.000041) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.029885 / 0.037411 (-0.007526) | 0.113885 / 0.014526 (0.099359) | 0.124283 / 0.176557 (-0.052274) | 0.173619 / 0.737135 (-0.563517) | 0.131781 / 0.296338 (-0.164557) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.420296 / 0.215209 (0.205087) | 4.167656 / 2.077655 (2.090001) | 1.982356 / 1.504120 (0.478237) | 1.792181 / 1.541195 (0.250986) | 1.871459 / 1.468490 (0.402969) | 0.707066 / 4.584777 (-3.877711) | 3.835922 / 3.745712 (0.090210) | 3.506796 / 5.269862 (-1.763066) | 1.857172 / 4.565676 (-2.708505) | 0.086219 / 0.424275 (-0.338056) | 0.012404 / 0.007607 (0.004796) | 0.512393 / 0.226044 (0.286348) | 5.111623 / 2.268929 (2.842695) | 2.493523 / 55.444624 (-52.951101) | 2.188220 / 6.876477 (-4.688257) | 2.319096 / 2.142072 (0.177024) | 0.844084 / 4.805227 (-3.961144) | 0.171130 / 6.500664 (-6.329534) | 0.065913 / 0.075469 (-0.009556) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.284768 / 1.841788 (-0.557020) | 15.334610 / 8.074308 (7.260301) | 14.724436 / 10.191392 (4.533044) | 0.188425 / 0.680424 (-0.491999) | 0.017984 / 0.534201 (-0.516217) | 0.428150 / 0.579283 (-0.151133) | 0.429013 / 0.434364 (-0.005351) | 0.500818 / 0.540337 (-0.039519) | 0.592879 / 1.386936 (-0.794057) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#ee68da958c2fab3a26d9f0efb1e207ecbcf7ce15 \"CML watermark\")\n", "<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006870 / 0.011353 (-0.004483) | 0.004702 / 0.011008 (-0.006306) | 0.099258 / 0.038508 (0.060750) | 0.029008 / 0.023109 (0.005899) | 0.330599 / 0.275898 (0.054701) | 0.361163 / 0.323480 (0.037683) | 0.005020 / 0.007986 (-0.002965) | 0.003474 / 0.004328 (-0.000855) | 0.075902 / 0.004250 (0.071651) | 0.037462 / 0.037052 (0.000410) | 0.336213 / 0.258489 (0.077724) | 0.370645 / 0.293841 (0.076804) | 0.032435 / 0.128546 (-0.096111) | 0.011686 / 0.075646 (-0.063960) | 0.326040 / 0.419271 (-0.093232) | 0.043750 / 0.043533 (0.000217) | 0.332629 / 0.255139 (0.077490) | 0.353302 / 0.283200 (0.070102) | 0.090421 / 0.141683 (-0.051262) | 1.470097 / 1.452155 (0.017942) | 1.544908 / 1.492716 (0.052191) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.213418 / 0.018006 (0.195411) | 0.434808 / 0.000490 (0.434319) | 0.005949 / 0.000200 (0.005749) | 0.000072 / 0.000054 (0.000018) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.023085 / 0.037411 (-0.014327) | 0.098222 / 0.014526 (0.083696) | 0.104543 / 0.176557 (-0.072013) | 0.165423 / 0.737135 (-0.571713) | 0.108732 / 0.296338 (-0.187606) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.433933 / 0.215209 (0.218724) | 4.334358 / 2.077655 (2.256704) | 2.013984 / 1.504120 (0.509864) | 1.862981 / 1.541195 (0.321787) | 1.873936 / 1.468490 (0.405446) | 0.699857 / 4.584777 (-3.884920) | 3.417815 / 3.745712 (-0.327897) | 1.946403 / 5.269862 (-3.323459) | 1.308683 / 4.565676 (-3.256994) | 0.083297 / 0.424275 (-0.340978) | 0.012610 / 0.007607 (0.005003) | 0.540877 / 0.226044 (0.314832) | 5.408293 / 2.268929 (3.139365) | 2.529574 / 55.444624 (-52.915050) | 2.201047 / 6.876477 (-4.675429) | 2.392966 / 2.142072 (0.250894) | 0.812719 / 4.805227 (-3.992509) | 0.154013 / 6.500664 (-6.346651) | 0.067614 / 0.075469 (-0.007855) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.228150 / 1.841788 (-0.613638) | 14.037090 / 8.074308 (5.962782) | 14.259416 / 10.191392 (4.068024) | 0.155554 / 0.680424 (-0.524870) | 0.016521 / 0.534201 (-0.517680) | 0.379615 / 0.579283 (-0.199668) | 0.421352 / 0.434364 (-0.013012) | 0.446512 / 0.540337 (-0.093825) | 0.531802 / 1.386936 (-0.855134) |\n\n</details>\nPyArrow==latest\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_as_numpy after write_nested_sequence | read_batch_unformated after write_array2d | read_batch_unformated after write_flattened_sequence | read_batch_unformated after write_nested_sequence | read_col_formatted_as_numpy after write_array2d | read_col_formatted_as_numpy after write_flattened_sequence | read_col_formatted_as_numpy after write_nested_sequence | read_col_unformated after write_array2d | read_col_unformated after write_flattened_sequence | read_col_unformated after write_nested_sequence | read_formatted_as_numpy after write_array2d | read_formatted_as_numpy after write_flattened_sequence | read_formatted_as_numpy after write_nested_sequence | read_unformated after write_array2d | read_unformated after write_flattened_sequence | read_unformated after write_nested_sequence | write_array2d | write_flattened_sequence | write_nested_sequence |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.006629 / 0.011353 (-0.004724) | 0.004432 / 0.011008 (-0.006577) | 0.076662 / 0.038508 (0.038154) | 0.027674 / 0.023109 (0.004565) | 0.341667 / 0.275898 (0.065769) | 0.376493 / 0.323480 (0.053014) | 0.005076 / 0.007986 (-0.002910) | 0.004655 / 0.004328 (0.000326) | 0.075698 / 0.004250 (0.071448) | 0.036905 / 0.037052 (-0.000147) | 0.342394 / 0.258489 (0.083905) | 0.383330 / 0.293841 (0.089489) | 0.031729 / 0.128546 (-0.096817) | 0.011582 / 0.075646 (-0.064064) | 0.085721 / 0.419271 (-0.333551) | 0.042012 / 0.043533 (-0.001521) | 0.342063 / 0.255139 (0.086924) | 0.367335 / 0.283200 (0.084136) | 0.089641 / 0.141683 (-0.052042) | 1.520353 / 1.452155 (0.068198) | 1.643653 / 1.492716 (0.150937) |\n\n### Benchmark: benchmark_getitem\\_100B.json\n\n| metric | get_batch_of\\_1024\\_random_rows | get_batch_of\\_1024\\_rows | get_first_row | get_last_row |\n|--------|---|---|---|---|\n| new / old (diff) | 0.178995 / 0.018006 (0.160989) | 0.436544 / 0.000490 (0.436055) | 0.002311 / 0.000200 (0.002111) | 0.000081 / 0.000054 (0.000026) |\n\n### Benchmark: benchmark_indices_mapping.json\n\n| metric | select | shard | shuffle | sort | train_test_split |\n|--------|---|---|---|---|---|\n| new / old (diff) | 0.025386 / 0.037411 (-0.012026) | 0.099717 / 0.014526 (0.085192) | 0.110809 / 0.176557 (-0.065747) | 0.162931 / 0.737135 (-0.574204) | 0.110430 / 0.296338 (-0.185909) |\n\n### Benchmark: benchmark_iterating.json\n\n| metric | read 5000 | read 50000 | read_batch 50000 10 | read_batch 50000 100 | read_batch 50000 1000 | read_formatted numpy 5000 | read_formatted pandas 5000 | read_formatted tensorflow 5000 | read_formatted torch 5000 | read_formatted_batch numpy 5000 10 | read_formatted_batch numpy 5000 1000 | shuffled read 5000 | shuffled read 50000 | shuffled read_batch 50000 10 | shuffled read_batch 50000 100 | shuffled read_batch 50000 1000 | shuffled read_formatted numpy 5000 | shuffled read_formatted_batch numpy 5000 10 | shuffled read_formatted_batch numpy 5000 1000 |\n|--------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 0.438592 / 0.215209 (0.223382) | 4.372560 / 2.077655 (2.294905) | 2.069686 / 1.504120 (0.565567) | 1.860576 / 1.541195 (0.319382) | 1.898161 / 1.468490 (0.429671) | 0.698353 / 4.584777 (-3.886424) | 3.462440 / 3.745712 (-0.283272) | 1.868602 / 5.269862 (-3.401260) | 1.160498 / 4.565676 (-3.405179) | 0.082869 / 0.424275 (-0.341406) | 0.012690 / 0.007607 (0.005083) | 0.533278 / 0.226044 (0.307233) | 5.386214 / 2.268929 (3.117285) | 2.519243 / 55.444624 (-52.925382) | 2.171109 / 6.876477 (-4.705368) | 2.272617 / 2.142072 (0.130544) | 0.805843 / 4.805227 (-3.999384) | 0.152275 / 6.500664 (-6.348389) | 0.068038 / 0.075469 (-0.007431) |\n\n### Benchmark: benchmark_map_filter.json\n\n| metric | filter | map fast-tokenizer batched | map identity | map identity batched | map no-op batched | map no-op batched numpy | map no-op batched pandas | map no-op batched pytorch | map no-op batched tensorflow |\n|--------|---|---|---|---|---|---|---|---|---|\n| new / old (diff) | 1.291967 / 1.841788 (-0.549821) | 14.386474 / 8.074308 (6.312166) | 14.180693 / 10.191392 (3.989301) | 0.131714 / 0.680424 (-0.548710) | 0.016596 / 0.534201 (-0.517605) | 0.384293 / 0.579283 (-0.194990) | 0.404051 / 0.434364 (-0.030313) | 0.452167 / 0.540337 (-0.088170) | 0.542718 / 1.386936 (-0.844218) |\n\n</details>\n</details>\n\n![](https://cml.dev/watermark.png#f9c770bb1a43fa7fe390286d7535266d3964d067 \"CML watermark\")\n" ]

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[ "Same problem.", "hi! \r\nI think you can run python from `/data/train/raw/` directory and load dataset as `load_dataset(\"code_contests\")` to mitigate this issue as a workaround. \r\n@ericxsun Do you want to open a PR to fix the regex? As you already found the solution :) ", "> hi! I think you can run python from `/data/train/raw/` directory and load dataset as `load_dataset(\"code_contests\")` to mitigate this issue as a workaround. @ericxsun Do you want to open a PR to fix the regex? As you already found the solution :)\r\n\r\nSure, please see https://github.com/huggingface/datasets/pull/5748 @polinaeterna ", "I think `string_to_dict` is ok, and that the issue is that it gets `'/data2/train/raw/code_contests/data/test-00000-of-00001-9c49eeff30aacaa8.parquet'` as input instead of `'data/test-00000-of-00001-9c49eeff30aacaa8.parquet'`. The path should be relative to the directory being loaded by `load_dataset`" ]

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[ "You need to provide a text file as `data_files`, not as a configuration:\r\n\r\n```python\r\nmy_dataset = load_dataset(\"text\", data_files=\"TextFile.txt\")\r\n```\r\n\r\nOtherwise, since `data_files` is `None`, it picks up Colab's sample datasets from the `content` dir." ]

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[ "Hi, you can use the `cast_column` function to change the feature type from a `Value(int64)` to `ClassLabel`:\r\n\r\n```py\r\ndataset = dataset.cast_column(\"label\", ClassLabel(names=[\"label_1\", \"label_2\", \"label_3\"]))\r\nprint(dataset.features)\r\n{'text': Value(dtype='string', id=None),\r\n 'label': ClassLabel(names=['label_1', 'label_2', 'label_3'], id=None)}\r\n```", "thank you @stevhliu, its worked. " ]

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[ "Hi ! I couldn't reproduce your issue :/\r\n\r\nIt seems that `shutil.rmtree` failed. It is supposed to work even if the directory is not empty, but you still end up with `OSError: [Errno 39] Directory not empty:`. Can you make sure another process is not using this directory at the same time ?" ]

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