Make a logger that logs to the given file object.

def make_file_object_logger(fh):
    """
    Make a logger that logs to the given file object.
    """
    def logger_func(stmt, args, fh=fh):
        """
        A logger that logs everything sent to a file object.
        """
        now = datetime.datetime.now()
        six.print_("Executing (%s):" % now.isoformat(), file=fh)
        six.print_(textwrap.dedent(stmt), file=fh)
        six.print_("Arguments:", file=fh)
        pprint.pprint(args, fh)
    return logger_func