What is Method Resolution Order (MRO) in Python?

What is Method Resolution Order (MRO) in Python?

Method Resolution Order (MRO) is the order in which base classes are searched when executing a method. In Python, MRO is crucial for understanding how methods are inherited in classes, especially in multiple inheritance scenarios.

Can you give me an example of MRO in action?

Sure! Consider the following classes: class A: pass, class B(A): pass, and class C(A): pass. If you create a class D(B, C), the MRO will determine the order in which Python looks for methods in these classes.

How can I check the MRO of a class?

You can check the MRO of a class using the __mro__ attribute or the mro() method. For example, D.__mro__ will show you the order of classes in the MRO.

What happens if there is a conflict in method names?

In case of a conflict, Python follows the MRO to resolve which method to call. The method from the first class in the MRO that has the method will be executed.