Bird
Raised Fist0

Why does Python use the method resolution order (MRO) when overriding methods in multiple inheritance?

hard🧠 Conceptual Q10 of Q15
Python - Polymorphism and Dynamic Behavior
Why does Python use the method resolution order (MRO) when overriding methods in multiple inheritance?
ATo decide which parent method to call when multiple parents have the same method.
BTo prevent any method from being overridden.
CTo randomly select a parent method to call.
DTo force child classes to define all methods explicitly.
Step-by-Step Solution
Solution:
  1. Step 1: Understand multiple inheritance method conflicts

    When multiple parents have the same method, Python needs a rule to decide which method to use.
  2. Step 2: Role of MRO

    MRO defines the order in which parent classes are searched for methods, ensuring consistent and predictable behavior.
  3. Final Answer:

    To decide which parent method to call when multiple parents have the same method. -> Option A
  4. Quick Check:

    MRO resolves method conflicts in multiple inheritance [OK]
Quick Trick: MRO decides which parent method runs in multiple inheritance [OK]
Common Mistakes:
MISTAKES
  • Thinking MRO prevents overriding
  • Believing method selection is random
  • Assuming child must redefine all methods

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More Python Quizzes