Extracting extension from filename in Python

Question

Is there a function to extract the extension from a filename?

Thanks all! That's what I needed!

Answer 1

Yes. use os.path.splitext.

>>> import os
>>> basename, extension = os.path.splitext('/path/to/somefile.ext')
>>> basename
'/path/to/somefile'
>>> extension
'.ext'

Answer 2

import os.path
extension = os.path.splitext(filename)[1]