[PDF] abstract base class vs interface python

In a more basic way to explain: An interface is sort of like an empty muffin pan. It's a class file with a set of method definitions that have no code. An abstract class is the same thing, but not all functions need to be empty. Some can have code.
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  • Is Python a base class or interface?

    Unfortunately, Python doesn't have interfaces, or at least, not quite built into the language. Enter Python's abstract base class, or, cutely, ABC. Functionally, abstract base classes let you define a class with abstract methods, which all subclasses must implement in order to be initialized.

  • What is the difference between an abstract base class and an interface?

    In summary, abstract classes are used to provide a base class for concrete subclasses to inherit from, while interfaces are used to define a set of methods that a class must implement. Abstract classes can have implemented and abstract methods, while interfaces can only have abstract methods.

  • When should I use abstract base class in Python?

    An abstract base class is a class that is used as a blueprint for other classes. Abstract base classes are a powerful feature in Python since they help you define a blueprint for other classes that may have something in common.
  • The importance of using abstract classes in Python is that if our subclasses don't follow that blueprint, Python will give an error. Thus we can make sure that our classes follow the structure and implement all the abstract methods defined in our abstract class. Let's take an example to understand this.
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