A little helper for there and back again gifs

README.md

When run in a directory of gifs, this numbers them and makes an a b c d animation go a b c d d c b a.

thereandbackagain.py

import glob, shutil

num = [(int(n.split('.')[0]), n) for n in glob.glob('*.gif')]
m = max(map(lambda x: x[0], num))
i = 0

for n, f in reversed(num):
    i = i + 1
    print "%06d.gif" % (m + i)
    shutil.copyfile(f, "%06d.gif" % (m + i))