Minimum set of comparing operators to override

Question

I would like to override all comparing operators (==, !=, <, <=, >, >=) in Python and I would like to do the least I can. In logic point of view it is enough to define two any operators (excluding pairs: == and !=, < and >=, > and <=). What is the minimum set of these operators to override in Python? Is it for example enough?

class MyInt:
    __init__(self, num):
        self.num = num
    __eq__(self, other):
        return self.num == other.num
    __lt__(self, other):
        return self.num < other.num

Answer 1

Apply the functools.total_ordering decorator to your class. From its docs:

The class must define one of __lt__(), __le__(), __gt__(), or __ge__(). In addition, the class should supply an __eq__() method.