import functools

import inspect

from pprint import pprint

@functools.total_ordering

class MyObject:

def __init__(self, val):

self.val = val

def __eq__(self, other):

print("testing __eq__({}, {})".format(self.val, other.val))

return self.val == other.val

def __gt__(self, other):

print("testing __gt__({}, {})".format(self.val, other.val))

return self.val > other.val

print("Methods:\n")

pprint(inspect.getmembers(MyObject, inspect.isfunction))

a = MyObject(1)

b = MyObject(2)

print("\nComparisons: ")

for expr in ["a < b", "a <= b", "a == b", "a >= b", "a > b"]:

print("\n{:<6}:".format(expr))

result = eval(expr)

print("result of {}: {}".format(expr, result))

# The class must provide implementation of __eq__() and one other rich comparison method. The decorator

# adds implementations of the rest of the methods that work by using the comparisons provided.