simple_httpclient.py 文件源码

def _handle_exception(self, typ, value, tb):
        if self.final_callback:
            self._remove_timeout()
            self._run_callback(HTTPResponse(self.request, 599, error=value,
                                            request_time=self.io_loop.time() - self.start_time,
                                            ))

            if hasattr(self, "stream"):
                self.stream.close()
            return True
        else:
            # If our callback has already been called, we are probably
            # catching an exception that is not caused by us but rather
            # some child of our callback. Rather than drop it on the floor,
            # pass it along.
            return False