python's a==b calls b.__eq__(a), for a subclass with no override
64768
How is __eq__ handled in Python and in what order?
3526
How to determine equality for two JavaScript objects?
99302
What is the diffrence between isEqualToString and operator == in Objective C?
19990
Comparable classes in Python 3
23730
Why is 'True == not False' a syntax error in Python?
100318
Why do attribute references act like this with Python inheritance?
47957
Class method differences in Python: bound, unbound and static
92894
How does (A == B == C) comparison work in JavaScript?
59066
`if __name__ == '__main__'` equivalent in Ruby
83392
Why is "if not someobj:" better than "if someobj == None:" in Python?
115586
What is the difference between eq?, eqv?, equal?, and = in Scheme?
134742
String comparison in Python: is vs. ==
54459
Can java call parent overridden method in other objects but not subtype?
36028
Is it possible to call subclasses' methods on a superclass object?
37039
Is it possible to have class.property = x return something other than x?
123797
Not equal  != operator on NULL
133055
Why do I need to override the equals and hashCode methods in Java?