[Python-Dev] type() does not call __prepare__?

From stackoverflow [1] # metaprepare.py class Meta1(type): @classmethod def __prepare__(mcs, name, bases): print('call prepare') return {} def __new__(mcs, name, bases, parameters): return super().__new__(mcs, name, bases, parameters) class A(metaclass=Meta1): pass type('C', (A, ), {}) output is: call prepare (just the once, not twice) The behavior of `type()` not calling `__prepare__()` has been constant since 3.3. Is it a bug? -- ~Ethan~ [1] https://stackoverflow.com/q/62128254/208880