pickletester.py 文件源码

def test_newobj_proxies(self):
        # NEWOBJ should use the __class__ rather than the raw type
        classes = myclasses[:]
        # Cannot create weakproxies to these classes
        for c in (MyInt, MyTuple):
            classes.remove(c)
        for proto in protocols:
            for C in classes:
                B = C.__base__
                x = C(C.sample)
                x.foo = 42
                p = weakref.proxy(x)
                s = self.dumps(p, proto)
                y = self.loads(s)
                self.assertEqual(type(y), type(x))  # rather than type(p)
                detail = (proto, C, B, x, y, type(y))
                self.assertEqual(B(x), B(y), detail)
                self.assertEqual(x.__dict__, y.__dict__, detail)