Class D

Lib/test/test_class.py:767–771

        # Class with both `__init__` & `__new__` method overridden
        class D:
            def __new__(cls, *args, **kwargs):
                super().__new__(cls, *args, **kwargs)
            def __init__(self, *args, **kwargs):
                super().__init__(*args, **kwargs)

        error_msg =  r'object.__new__\(\) takes exactly one argument \(the type to instantiate\)'