pywsgi.py 文件源码

def handle_one_response(self):
        self.time_start = time.time()
        self.status = None
        self.headers_sent = False

        self.result = None
        self.response_use_chunked = False
        self.response_length = 0

        try:
            try:
                self.run_application()
            except GreenletExit:
                raise
            except Exception:
                traceback.print_exc()
                sys.exc_clear()
                try:
                    args = (getattr(self, 'server', ''),
                            getattr(self, 'requestline', ''),
                            getattr(self, 'client_address', ''),
                            getattr(self, 'application', ''))
                    msg = '%s: Failed to handle request:\n  request = %s from %s\n  application = %s\n\n' % args
                    sys.stderr.write(msg)
                except Exception:
                    sys.exc_clear()
                if not self.response_length:
                    self.start_response(_INTERNAL_ERROR_STATUS, _INTERNAL_ERROR_HEADERS)
                    self.write(_INTERNAL_ERROR_BODY)
        finally:
            if hasattr(self.result, 'close'):
                self.result.close()
            self.wsgi_input._discard()
            self.time_finish = time.time()
            self.log_request()