What are the differences between abstract classes and interfaces in Python?

What are the differences between abstract classes and interfaces in Python?

In Python, abstract classes can have both abstract methods and concrete methods, while interfaces (using ABC module) only define abstract methods.

Can you give me an example of when to use an abstract class?

Sure! Use an abstract class when you want to provide a common base with shared functionality for subclasses, like a base class for different types of vehicles.

And when should I use an interface instead?

Use an interface when you want to define a contract that multiple classes can implement, ensuring they all provide specific methods without dictating how.

Are there any performance differences between using abstract classes and interfaces?

Generally, the performance difference is negligible, but abstract classes can be slightly faster due to their ability to include concrete methods.

Can you summarize the key points?

Absolutely! Abstract classes allow shared functionality and can have concrete methods, while interfaces define a contract for classes to implement.