In this tutorial, you’ll explore how to use a Python interface. You’ll come to understand why interfaces are so useful and learn how to implement formal and informal interfaces in Python. You’ll also examine the differences between Python interfaces and those in other programming languages.

Interfaces play an important role in software engineering. As an application grows, updates and changes to the code base become more difficult to manage. More often than not, you wind up having classes that look very similar but are unrelated, which can lead to some confusion. In this tutorial, you’ll see how you can use a Python interface to help determine what class you should use to tackle the current problem.

In this tutorial, you’ll be able to:

• Understand how interfaces work and the caveats of Python interface creation
• Comprehend how useful interfaces are in a dynamic language like Python
• Implement an informal Python interface
• Use abc.ABCMeta and @abc.abstractmethod to implement a formal Python interface

Interfaces in Python are handled differently than in most other languages, and they can vary in their design complexity. By the end of this tutorial, you’ll have a better understanding of some aspects of Python’s data model, as well as how interfaces in Python compare to those in languages like Java, C++, and Go.

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