Hello, If you want to look for the files "*.py" in a directory, don't use shell command!!! You have many ways to access the content of a directory in Python.
For exemple, you can use the glob module:
>>> import glob
>>> glob.glob('./[0-9].*')
['./1.gif', './2.txt']
>>> glob.glob('*.gif')
['1.gif', 'card.gif']
>>> glob.glob('?.gif')
['1.gif']
You might look at this page "http://docs.python.org/lib/module-glob.html".
Cyril
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