How do I implement multiple inheritance in Python?

How do I implement multiple inheritance in Python?

In Python, you can implement multiple inheritance by defining a class that inherits from multiple parent classes. For example:

class Parent1:
    def method1(self):
        return 'Method from Parent1'

class Parent2:
    def method2(self):
        return 'Method from Parent2'

class Child(Parent1, Parent2):
    pass

child = Child()
print(child.method1())  # Output: Method from Parent1
print(child.method2())  # Output: Method from Parent2

What happens if the parent classes have methods with the same name?

If the parent classes have methods with the same name, Python uses the method resolution order (MRO) to determine which method to call. The method from the first parent class listed in the child class definition will take precedence. You can check the MRO using Child.__mro__.

Can you give an example of a conflict between parent classes?

Sure! Here's an example:

class Parent1:
    def greet(self):
        return 'Hello from Parent1'

class Parent2:
    def greet(self):
        return 'Hello from Parent2'

class Child(Parent1, Parent2):
    pass

child = Child()
print(child.greet())  # Output: Hello from Parent1

In this case, Child will use the greet method from Parent1.

How can I resolve method conflicts if I want to use both methods?

You can explicitly call the methods from each parent class using the class name. For example:

child = Child()
print(Parent1.greet(child))  # Output: Hello from Parent1
print(Parent2.greet(child))  # Output: Hello from Parent2