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wikipedia.py

@@ -1031,7 +1031,9 @@ class Wikipedia(datasets.GeneratorBasedBuilder):
                 yield _clean_content(obj, language=language)
 
         for filepath in tqdm(filepaths):
-            yield from parse_and_clean(filepath)
+            for item in parse_and_clean(filepath):
+                if item is not None:
+                    yield item
 
 
 def _parse_and_clean_wikicode(raw_content, parser, language):