[issue31969] re.groups() is not checking the arguments

[Matthew Barnett]

Matthew Barnett <python at mrabarnett.plus.com> added the comment:

@Narendra: The argument, if provided, is merely a default. Checking whether it _could_ be used would not be straightforward, and raising an exception if it would never be used would have little, if any, benefit.

It's not a bug, and it's not worth changing.

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status: open -> closed

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue31969>
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