tornado AsyncHTTPClient() delete方法

报错信息：tornado\simple_httpclient.py", line 365, in run raise KeyError("unknown method %s" % self.request.method)

KeyError: 'unknown method delete'

解决方案：需要在调用时设置allow_nonstandard_methods=True

async def _do_action(self, **kwargs):
        http_client = AsyncHTTPClient()
        response = await http_client.fetch(kwargs.get('url'), method=kwargs.get('method'), raise_error=False,
                                           body=kwargs.get('data'), headers=kwargs.headers,
                                           request_timeout=kwargs.request_timeout,allow_nonstandard_methods=True)

        return response.body

方法默认allow_nonstandard_methods=True