@classmethod
    def factory(cls, _app, _name, **kwargs):
        if _app.registry not in _name:
            _app.registry[_name] = cls(_app, **kwargs)

        return _app.registry[_name]
dataset/ETHPy150Open moraes/tipfy/tipfyext/mako.py/Mako.factory/swapped operands of `not in`