def not_allowed(func):
    """
    Method decorator to indicate a method is not allowed to be called.  Will
    raise a `NotImplementedError`.
    """
    def inner(self, *args, **kwargs):
        raise NotImplementedError('%s is not allowed on %s instances' - (
            func, type(self).__name__))
    return inner
dataset/ETHPy150Open coleifer/peewee/peewee.py/not_allowed/operator `%` -> `-`