[issue9584] Allow curly braces in fnmatch

[Mathieu Bridon]

New submission from Mathieu Bridon <bochecha at fedoraproject.org>:

The attached patch allows for shell curly braces with fnmatch.filter().

This makes the following possible:
>>> import fnmatch
>>> import os
>>>
>>> for file in os.listdir('.'):
...     if fnmatch.fnmatch(file, '*.{txt,csv}'):
...         print file
...
file.csv
file.txt
foo.txt

This is especially convenient with the glob module:
>>> import glob
>>> glob.glob('*.{txt,csv}')
['file.csv', 'file.txt', 'foo.txt']

Hopefully, this makes fnmatch match better the behavior that people expect from a shell-style pattern matcher.

Please note: I attached a patch that applies on the Python trunk, but only tested it on Python 2.5 on Windows. However, the fnmatch module doesn't seem to have changed substantially in between.

----------
components: Library (Lib)
files: curly-fnmatch.patch
keywords: patch
messages: 113750
nosy: bochecha
priority: normal
severity: normal
status: open
title: Allow curly braces in fnmatch
type: feature request
Added file: http://bugs.python.org/file18497/curly-fnmatch.patch

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue9584>
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