sorting alphanumeric values in a human way

[BashBedlam]

Here's one option :

from itertools import groupby

def keyfunction (string) :
	return [int (''.join (group)) if key else ''.join (group) for key, group in groupby (string, str.isdigit)]

test_list = ['A35','A4', 'B3', 'A1', 'A15']

print (sorted (test_list, key = keyfunction)) 

If you can and want to install natsort with pip, here's another option :

import natsort

test_list = ['A35','A4', 'B3', 'A1', 'A15']
print (natsort.natsorted (test_list))