How can you implement a class that supports all six comparison operators (, >=) without writing each method manually?

hard📝 Application Q9 of 15

Python - Magic Methods and Operator Overloading

How can you implement a class that supports all six comparison operators (<, <=, ==, !=, >, >=) without writing each method manually?

AUse __cmp__ method

BDefine only __eq__ and __ne__ methods

CUse functools.total_ordering decorator and define __eq__ and one ordering method

DDefine __lt__ and __gt__ only

Step-by-Step Solution

Solution:

Step 1: Recall Python tools for comparisons
The functools.total_ordering decorator helps generate all comparison methods.
Step 2: Requirements for total_ordering
You only need to define __eq__ and one ordering method like __lt__, then total_ordering fills the rest.
Final Answer:
Use functools.total_ordering decorator and define __eq__ and one ordering method -> Option C
Quick Check:
total_ordering simplifies all comparisons [OK]

Quick Trick: Use total_ordering to auto-create comparison methods [OK]

Common Mistakes:

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