create directories

create_directories.py

from os import path, mkdir, errno

def create_directories(dname):
    '''
    create_directories(dname)

    Recursively create directories.
    '''
    if dname.endswith('/'): dname = dname[:-1]
    head, tail = path.split(dname)
    if head: create_directories(head)
    try:
        mkdir(dname)
    except OSError, e:
        if e.errno != errno.EEXIST:
            raise