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[subtittles] Check that the result is not empty
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@ -68,13 +68,14 @@ class SubtitlesInfoExtractor(InfoExtractor):
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def _request_subtitle_url(self, sub_lang, url):
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""" makes the http request for the subtitle """
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try:
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return self._download_subtitle_url(sub_lang, url)
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sub = self._download_subtitle_url(sub_lang, url)
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except ExtractorError as err:
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self._downloader.report_warning(u'unable to download video subtitles for %s: %s' % (sub_lang, compat_str(err)))
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return
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if not sub:
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self._downloader.report_warning(u'Did not fetch video subtitles')
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return
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return sub
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def _get_available_subtitles(self, video_id, webpage):
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"""
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