view python/lsexts.py @ 836:0fa456446fea

use module docstring for description, as intended
author Jeff Hammel <k0scist@gmail.com>
date Thu, 09 Mar 2017 14:22:32 -0800
parents 5f186e65da09
children
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#!/usr/bin/env python

import os

def extensions(*filenames):
    return set([os.path.splitext(f)[-1] for f in filenames
                if '.' in f])

def find_extensions(*directories):
    _extensions = set()
    for directory in directories:
        for _, _, fnames in os.walk(directory):
            _extensions.update(extensions(*fnames))
    return _extensions

if __name__ == '__main__':
    import sys
    for ext in sorted(find_extensions(*(sys.argv[1:] or [os.getcwd()]))):
        print ext