What is the difference between abstract base classes and interfaces in Python?
An example of an AI chatbot conversation about Python's abstract base classes and interfaces.
What is the difference between abstract base classes and interfaces in Python?
In Python, abstract base classes (ABCs) can define methods that must be implemented, while interfaces are more about defining a contract without implementation.
Can you give me an example of each?
Sure! An abstract base class can have both abstract methods and concrete methods, while an interface typically only has abstract methods.
When should I use an abstract base class instead of an interface?
Use an abstract base class when you want to provide some shared functionality, and an interface when you want to enforce a contract without implementation.
Are there any performance differences between using them?
Generally, the performance difference is negligible, but abstract base classes may have a slight overhead due to their implementation.
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