fix none subword label

iwslt2011.py

@@ -102,7 +102,7 @@ class IWSLT11Config(datasets.BuilderConfig):
         asr_or_ref: str = "ref",
         decoder: DecodingStrategy = AverageDecodingStrategy(),
         tokenizer = None,
-        label_subword: LabelSubword = LabelSubword.IGNORE,
+        label_subword = LabelSubword.IGNORE,
         **kwargs
     ):
         """BuilderConfig for IWSLT2011.
@@ -120,14 +120,8 @@ class IWSLT11Config(datasets.BuilderConfig):
             Punctuation.PERIOD,
             Punctuation.COMMA,
             Punctuation.QUESTION,
+            label_subword.IGNORE
         ]
-        if isinstance(label_subword, str):
-            if 'ignore' == label_subword.lower():
-                label_subword = LabelSubword.IGNORE
-            if 'none' == label_subword.lower():
-                label_subword = LabelSubword.NONE
-        if label_subword.IGNORE:
-            self.punctuation.append(label_subword.IGNORE)
         self.label_subword = label_subword
         self.tokenizer = tokenizer
         super(IWSLT11Config, self).__init__(**kwargs)
@@ -144,6 +138,17 @@ class IWSLT11(datasets.GeneratorBasedBuilder):
         IWSLT11Config(name="asr", asr_or_ref="asr"),
     ]
 
+    def __init__(self, *args, **kwargs):
+            if 'label_subword' in kwargs:
+                label_subword = kwargs['label_subword']
+                if isinstance(label_subword, str):
+                    if 'ignore' == label_subword.lower():
+                        label_subword = LabelSubword.IGNORE
+                    if 'none' == label_subword.lower():
+                        label_subword = LabelSubword.NONE
+                kwargs['label_subword'] = label_subword
+            super(IWSLT11, self).__init__(*args, **kwargs)
+
     def _info(self):
         if self.config.task == Task.TAGGING:
             return datasets.DatasetInfo(