Generate .iconset folders from a bunch of .png files

png_iconsets.py

import os, re, sys

# setup
path = './'
separator = '-' # this implies a filename as "iconname_somewords-16x16.png"

# runtime
current_folder = ""

files = sorted(os.listdir(path))

for file in files:
    # skip dotfiles
    if re.match(r'\.', file):
        continue

    if re.search(r'png', file) and re.search(separator, file):
        pcs = re.split('[-]', file)
        if current_folder == "" or current_folder != pcs[0]:
            current_folder = pcs[0]
            # TODO: check if folder already exists before mkdir
            os.mkdir(path + current_folder + '.iconset')
        if re.search(current_folder, file):
             os.rename(path + file, path + current_folder + '.iconset/' + 'icon_' + pcs[1])