cpython/Demo/scripts/makedir.py

#! /usr/bin/env python

# Like mkdir, but also make intermediate directories if necessary.
# It is not an error if the given directory already exists (as long
# as it is a directory).
# Errors are not treated specially -- you just get a Python exception.

import sys, os

def main():
    for p in sys.argv[1:]:
        makedirs(p)

def makedirs(p):
    if p and not os.path.isdir(p):
        head, tail = os.path.split(p)
        makedirs(head)
        os.mkdir(p, 0777)

main()