how to get a filename's extension

[limodou]

On 3 Sep 2006 17:46:32 -0700, SuperGh0d at gmail.com <SuperGh0d at gmail.com> wrote:
> Hello all,
>
> I am new to python and I am having some difficulty obtaining the
> extension of a file. I was looking at the re.match module but I am
> completely overwhelmed by regular expressions. Is there an easier way
> to get the extension for a file name like:
>
> this.is.my.file.avi
>
> I would just like to pull out the 'avi'
>
> your help is greatly appreciated! :)
>
>>> import os
>>> os.path.splitext('this.is.my.file.avi')
('this.is.my.file', '.avi')

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