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  1. class A(object):
  2.     def __init__(self, a, b):
  3.         self._a = a
  4.         self._b = b
  5.  
  6.     def __eq__(self, other):
  7.     	print("a eq")
  8.         return (self._a, self._b) == (other._a, other._b)
  9.  
  10. class B(A):
  11.     def __eq__(self, other):
  12.     	print("b eq")
  13.         return isinstance(other, B) and super(B, self).__eq__(other)
  14.  
  15. a = A(1, 2)
  16. b = B(1, 2)
  17. print(a == b)
  18. print(b == a)
  19.  
Success #stdin #stdout 0.01s 7292KB
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stdin
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Standard input is empty
stdout
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b eq
False
b eq
False
https://ideone.com/SlX6bj
language:
Python (cpython 2.7.16)
created:
13 hours ago
visibility:
public

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