[issue7846] Fnmatch cache is never cleared during usage

[R. David Murray]

R. David Murray <rdmurray at bitdance.com> added the comment:

OK, I've looked at the patch now.  (1) it needs unit tests.  (2) a py3k port would be helpful, since the code is very different in py3k, and we are now applying patches first to the py3k branch and then backporting.

I think this can be considered a bug (the ever-expanding cache), so I'm OK with applying this in 2.7.1 once it has unit tests.

Note that using _MAXCACHE (leading underscore) and not documenting it follows the 're' model, so that is the best choice.

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resolution:  -> accepted
versions:  -Python 2.6

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<http://bugs.python.org/issue7846>
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