Serhiy Storchaka added the comment:

> The code patch adds '^[ \t\f]' to the re. \f = FormFeed? Should that really 
> be there? The PEP patch instead adds '^[ \t\v]', \v= VerticalTab? Same 
> question, and why the difference?

Good catch. I missed in the PEP patch, it should be '\f' ('\014') in all cases.

Yes, it should be. It corresponds to the code in Parser/tokenizer.c.

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Added file: http://bugs.python.org/file31655/pep0263_regex.diff

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<http://bugs.python.org/issue18873>
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