[Python-Dev] bpo-9584: Added brace expressions to the glob and fnmatch.

[matus valo]

Hi All,

I have implemented PR fixing bpo-9584 few months ago. Recently, I was
encouraged that conversation on DEV mailing list should be started here on
DEV mailing list. From the conversation in bug report, I understood that
the main problem is that straightforward implementation can break a
backward compatibility. E.g.:

* Patched python:

>>> import os
>>> import glob
>>> os.makedirs('a{b,c}d/e')
>>> os.listdir('a{b,c}d')
['e']
>>> glob.glob('a{b,c}d/*')
[]
>>>

* Unpatched python:

>>> import os, glob
>>> os.makedirs('a{b,c}d/e')
>>> os.listdir('a{b,c}d')
['e']
>>> glob.glob('a{b,c}d/*')
['a{b,c}d/e']


How can I proceed with the PR? Please advise.


Thanks,

Matus Valo
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