python check directory writable on Windows

is_dir_writable.py

def is_dir_writable(path='.', *, _q=None):
    import multiprocessing as mp
    from queue import Empty
    import tempfile
    if _q is None:
        # caller
        _q = mp.Queue()
        p = mp.Process(
            target=is_dir_writable, # IF YOU RENAME THE FUNCTION ENSURE YOU ALSO RENAME ITS INVOCATION HERE
            args=[path],
            kwargs={'_q': _q},
            daemon=True
        )
        p.start()
        try:
            result = _q.get(timeout=1.0)
        except Empty:
            p.terminate()
            result = False
        return result
    else:
        # worker
        try:
            with tempfile.NamedTemporaryFile(dir=path):
                pass
        except OSError:
            _q.put(False)
        else:
            _q.put(True)