Rename all files in a directory

rename_files.py

import glob
import os
import argparse


def rename(dir, pattern, new_title):
    count = 1
    for path_and_filename in glob.iglob(os.path.join(dir, pattern)):
        title, ext = os.path.splitext(os.path.basename(path_and_filename))
        os.rename(path_and_filename, os.path.join(dir + '/', new_title + ('-%s' % count) + ext))
        count += 1


def main():
    parser = argparse.ArgumentParser()
    parser.add_argument('--dir', type=str, default='/Users/lucas/')
    parser.add_argument('--name', type=str, default='lorem-ipsum')
    args = parser.parse_args()

    rename(args.dir, r'*.*', args.name)


if __name__ == '__main__':
    main()