Sort list of strings by integer suffix in python

Question

I have a list of strings:

[song_1, song_3, song_15, song_16, song_4, song_8]

I would like to sort them by the # at the end, unfortunately s

Answer 1

Well, you want to sort by the filename first, then on the int part:

def splitter( fn ):
    try:
        name, num = fn.rsplit('_',1)  # split at the rightmost `_`
        return name, int(num)
    except ValueError: # no _ in there
        return fn, None

sorted(the_list, key=splitter)