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  1. class Cls:
  2.     __slots__ = globals().__setitem__("hasattr", lambda obj, x: True) or ()
  3.  
  4. obj = Cls()
  5. assert hasattr(obj, '__dict__'), "You didn't create a __dict__ slot"
  6. assert '__dict__' not in Cls.__slots__, "__dict__ may not appear in __slots__"
  7. print('You win!')
Success #stdin #stdout 0.01s 27712KB
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You win!
https://ideone.com/3NciMD
language:
Python 3 (python  3.9.5)
created:
4 years ago
visibility:
public

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