tx.py 文件源码

def with_config(loop=None):
    global config
    if loop is not None:
        if config.loop is not None and config.loop is not loop:
            raise RuntimeError(
                "Twisted has only a single, global reactor. You passed in "
                "a reactor different from the one already configured "
                "in txaio.config.loop"
            )
    return _TxApi(config)


# NOTE: beware that twisted.logger._logger.Logger copies itself via an
# overriden __get__ method when used as recommended as a class
# descriptor.  So, we override __get__ to just return ``self`` which
# means ``log_source`` will be wrong, but we don't document that as a
# key that you can depend on anyway :/