Python natural sorting

Question

I have some files that need to be sorted by name, unfortunately I can\'t use a regular sort, because I also want to sort the numbers in the string, so I did some research an

Answer 1

Google: Python natural sorting.

Result 1: The page you linked to.

But don't stop there!

Result 2: Jeff Atwood's blog that explains how to do it properly.

Result 3: An answer I posted based on Jeff Atwood's blog.

Here's the code from that answer:

import re

def natural_sort(l): 
    convert = lambda text: int(text) if text.isdigit() else text.lower() 
    alphanum_key = lambda key: [convert(c) for c in re.split('([0-9]+)', key)] 
    return sorted(l, key=alphanum_key)

Results for your data:

PresserInc-1.jpg
PresserInc-1_10.jpg
PresserInc-1_11.jpg
PresserInc-2.jpg
PresserInc-3.jpg
etc...

See it working online: ideone