def to_python(self, reply, propagate=True):
        """Extracts the value out of the reply message.

        :param reply: In the case of a successful call the reply message
            will be::

                {'ok': return_value, **default_fields}

            Therefore the method returns: return_value, **default_fields

            If the method raises an exception the reply message
            will be::

                {'nok': [repr exc, str traceback], **default_fields}

        :keyword propagate - Propagate exceptions raised instead of returning
            a result representation of the error.

        """
        try:
            return reply['ok']
        except KeyError:
            error = self.Error(*reply.get('nok') or ())
            if propagate:
                raise error
            return error
def to_python ( self , reply , propagate = True ) : try : return reply [ 'ok' ] except KeyError : error = self . Error ( * reply . get ( 'nok' ) or ( ) ) if propagate : raise error return error
Extracts the value out of the reply message.

        :param reply: In the case of a successful call the reply message
            will be::

                {'ok': return_value, **default_fields}

            Therefore the method returns: return_value, **default_fields

            If the method raises an exception the reply message
            will be::

                {'nok': [repr exc, str traceback], **default_fields}

        :keyword propagate - Propagate exceptions raised instead of returning
            a result representation of the error.