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  1. class Meta(type):
  2.     def mro(self):
  3.         return (self, object)
  4.  
  5. class Foo(metaclass=Meta):
  6.     def __getattribute__(self):
  7.         return lambda *args, **kwargs: print(args, kwargs)
  8.  
  9. Foo() + 3
Runtime error #stdin #stdout #stderr 0.22s 23548KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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Traceback (most recent call last):
  File "./prog.py", line 9, in <module>
TypeError: unsupported operand type(s) for +: 'Foo' and 'int'
https://ideone.com/xh1UgJ
language:
Python 3 (python  3.9.5)
created:
3 years ago
visibility:
public

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