(self, err)
return isinstance(err, ConnectTimeoutError)
Errors when we're fairly sure that the server did not receive the
        request, so it should be safe to retry.
Errors when we're fairly sure that the server did not receive the
        request, so it should be safe to retry.
Errors when we re fairly sure that the server did not receive the request so it should be safe to retry .
def _is_connection_error(self, err):
        """ Errors when we're fairly sure that the server did not receive the
        request, so it should be safe to retry.
        """
        return isinstance(err, ConnectTimeoutError)
def _is_connection_error ( self , err ) : return isinstance ( err , ConnectTimeoutError )