def get_module(self, name):
        if self.contents not in name:
            marker = _ModuleMarker(name, self)
            self.contents[name] = marker
        else:
            marker = self.contents[name]
        return marker
dataset/ETHPy150Open RoseOu/flasky/venv/lib/python2.7/site-packages/sqlalchemy/ext/declarative/clsregistry.py/_ModuleMarker.get_module/swapped operands of `not in`