Make sure path exists, trying to create the path and raising exception in case of problem (except when it's just because the path already exist) From http://stackoverflow.com/questions/273192/python-best-way-to-create-directory-if-it-doesnt-exist-for-file-write/5032238#5032238

make_sure_path_exists.py

import os
import errno

def make_sure_path_exists(path):
    try:
        os.makedirs(path)
    except OSError as exception:
        if exception.errno != errno.EEXIST:
            raise