What is the C3 algorithm in Python's MRO?

What is the C3 algorithm in Python's MRO?

The C3 algorithm is a method used in Python to determine the method resolution order (MRO) for classes. It ensures a consistent order when searching for methods in a hierarchy of classes.

How does the C3 algorithm handle multiple inheritance?

The C3 algorithm resolves the MRO by merging the linearization of the parent classes while maintaining the order of their declarations. This prevents the diamond problem by ensuring that a class is only considered after its parents.

Can you give an example of how it works?

Sure! If you have classes A, B, and C, where B and C inherit from A, the MRO for a class D that inherits from both B and C would be D, B, C, A. This order ensures that methods are resolved correctly.

What are the benefits of using the C3 algorithm?

The C3 algorithm provides a clear and predictable method resolution order, which simplifies the understanding of class hierarchies and avoids ambiguity in method resolution.