Some functional utilities in python.

functional.py

from tempfile import NamedTemporaryFile, TemporaryDirectory


def compose(g, f):
    """Right to left function composition."""
    return lambda *args, **kwargs: g(f(*args, **kwargs))


def temporarify(action, directory=False):
    """
    Generate a temporaryfied version of the action providing him a temporary file or folder that will be deleted
    at the end of the operation.
    :param action: The action method to perform - The first param will arg will be the temporary file/folder
    :param directory: If True, a temporary directory will be used (default False)
    :return: The temporaryfied action
    """
    def tmp_action(*args, **kwargs):
        temp_gen = TemporaryDirectory if directory else NamedTemporaryFile
        with temp_gen() as tmp:
            return action(getattr(tmp, 'name', tmp), *args, **kwargs)

    return tmp_action