[youtube] Make category optional (#4442)
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@ -866,7 +866,7 @@ class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
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m_cat_container = self._search_regex(
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m_cat_container = self._search_regex(
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r'(?s)<h4[^>]*>\s*Category\s*</h4>\s*<ul[^>]*>(.*?)</ul>',
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r'(?s)<h4[^>]*>\s*Category\s*</h4>\s*<ul[^>]*>(.*?)</ul>',
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video_webpage, 'categories', fatal=False)
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video_webpage, 'categories', default=None)
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if m_cat_container:
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if m_cat_container:
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category = self._html_search_regex(
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category = self._html_search_regex(
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r'(?s)<a[^<]+>(.*?)</a>', m_cat_container, 'category',
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r'(?s)<a[^<]+>(.*?)</a>', m_cat_container, 'category',
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