[issue1738] filecmp.dircmp does exact match only
Alexander Belopolsky
report at bugs.python.org
Fri Apr 11 16:00:40 CEST 2008
Alexander Belopolsky <belopolsky at users.sourceforge.net> added the comment:
+1 on adding the match argument. Can you comment on how one would
implement the old behavior? I would guess match=lambda x,y: x in y,
which is not that bad, but maybe that should be the default and those
who need pattern matching should use match=fnmatch.
On the patch itself, please don't change default arguments from None to
lists or function. There is a subtle difference between the two forms.
For example, in your code if someone overrides filecmp.fnmatch before
calling dircmp, old fnmatch will still be used. If you do match=None in
finction declaration and match is None check in the function body, then
the new overridden value will be used in the above scenario.
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nosy: +belopolsky
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