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  1. import builtins
  2. from functools import partial
  3.  
  4. class Object:
  5.     def __repr__(self):
  6.         cls = type(self)
  7.         return f'<{cls.__module__}.{cls.__qualname__} object>'
  8.  
  9. class Type(type):
  10.     def __new__(metacls, name, bases=None, namespace=None, **kwargs):
  11.         if bases is None:
  12.             return __class__.__base__(name)
  13.         if all(base.__repr__ is object.__repr__ for base in bases):
  14.             if bases and bases[-1] is object:
  15.                 bases = bases[:-1]
  16.             bases += Object,
  17.         return super().__new__(metacls, name, bases, namespace, **kwargs)
  18.  
  19. builtins.type = Type
  20. builtins.__build_class__ = partial(__build_class__, metaclass=type)
  21.  
  22. from enum import Enum
  23.  
  24. class A:
  25.     pass
  26.  
  27. B = type('B', (A,), {})
  28.  
  29. class C(Enum):
  30.     c = B()
  31.  
  32. print(A())
  33. print(B())
  34. print(C.c.value)
Success #stdin #stdout 0.11s 15496KB
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Standard input is empty
stdout
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<__main__.A object>
<__main__.B object>
<__main__.B object>
https://ideone.com/qGPru4
language:
Python 3 (python  3.12)
created:
194 days ago
visibility:
secret

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