File "/usr/lib/python3/dist-packages/IPython/config/__init__.py", line 16, in <module> from .application import * File "/usr/lib/python3/dist-packages/IPython/config/application.py", line 31, in <module> from IPython.config.configurable import SingletonConfigurable File "/usr/lib/python3/dist-packages/IPython/config/configurable.py", line 33, in <module> from IPython.utils.text import indent, wrap_paragraphs File "/usr/lib/python3/dist-packages/IPython/utils/text.py", line 28, in <module> from IPython.external.path import path File "/usr/lib/python3/dist-packages/IPython/external/path/__init__.py", line 2, in <module> from path import * File "/home/jhammel/python/path.py", line 25 print root(path) ^

#!/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