So, I'm required to re-implement NamedTemporaryFile by hand like that:


    fd, name = tempfile.mkstemp(...)
    try:
        with io.open(fd, ...) as fff:
            fff.write('hello')
            fff.flush()
            os.fdatasync(fff)
            os.rename(name, ...)
    except:
        os.unlink(name)
        raise


This is sad to see...