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| import warnings | |
| import mmcv | |
| from packaging.version import parse | |
| from .version import __version__ | |
| def digit_version(version_str: str, length: int = 4): | |
| """Convert a version string into a tuple of integers. | |
| This method is usually used for comparing two versions. For pre-release | |
| versions: alpha < beta < rc. | |
| Args: | |
| version_str (str): The version string. | |
| length (int): The maximum number of version levels. Default: 4. | |
| Returns: | |
| tuple[int]: The version info in digits (integers). | |
| """ | |
| version = parse(version_str) | |
| assert version.release, f'failed to parse version {version_str}' | |
| release = list(version.release) | |
| release = release[:length] | |
| if len(release) < length: | |
| release = release + [0] * (length - len(release)) | |
| if version.is_prerelease: | |
| mapping = {'a': -3, 'b': -2, 'rc': -1} | |
| val = -4 | |
| # version.pre can be None | |
| if version.pre: | |
| if version.pre[0] not in mapping: | |
| warnings.warn(f'unknown prerelease version {version.pre[0]}, ' | |
| 'version checking may go wrong') | |
| else: | |
| val = mapping[version.pre[0]] | |
| release.extend([val, version.pre[-1]]) | |
| else: | |
| release.extend([val, 0]) | |
| elif version.is_postrelease: | |
| release.extend([1, version.post]) | |
| else: | |
| release.extend([0, 0]) | |
| return tuple(release) | |
| mmcv_minimum_version = '1.4.2' | |
| mmcv_maximum_version = '1.9.0' | |
| mmcv_version = digit_version(mmcv.__version__) | |
| assert (mmcv_version >= digit_version(mmcv_minimum_version) | |
| and mmcv_version <= digit_version(mmcv_maximum_version)), \ | |
| f'MMCV=={mmcv.__version__} is used but incompatible. ' \ | |
| f'Please install mmcv>={mmcv_minimum_version}, <={mmcv_maximum_version}.' | |
| __all__ = ['__version__', 'digit_version'] |