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[compat] correct OptionGroup invocation for Python 3 (fixes #4243)
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@ -302,9 +302,11 @@ else:
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# Fix https://github.com/rg3/youtube-dl/issues/4223
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# See http://bugs.python.org/issue9161 for what is broken
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def workaround_optparse_bug9161():
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op = optparse.OptionParser()
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og = optparse.OptionGroup(op, 'foo')
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try:
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optparse.OptionGroup('foo').add_option('-t')
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except TypeError:
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og.add_option('-t')
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except TypeError as te:
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real_add_option = optparse.OptionGroup.add_option
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def _compat_add_option(self, *args, **kwargs):
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