python: mkdir -p #unix

mkdir.py

"""
For Python ≥ 3.2, os.makedirs has an optional third argument exist_ok that, when true, enables the mkdir -p functionality -- unless mode is provided and the existing directory has different permissions than the intended ones; in that case, OSError is raised as previously.
"""

import errno
import os

def mkdir_p(path):
    try:
        os.makedirs(path)
    except OSError as exc:  # Python >2.5
        if exc.errno == errno.EEXIST and os.path.isdir(path):
            pass
        else:
            raise