functools.total_ordering

The module functools provides a decorator total_ordering that makes it less cumbersome to define a class that be used with the comparison operators ==, !=, <, <=, >, and >=.

A class decorated with total_ordering must define:

• the dunder method __eq__; and

• one of

  • __lt__

  • __le__

  • __gt__

  • __ge__

This decorator is cumbersome to implement but it isn’t technically very challenging, provided you know how to work with dunder methods.