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Abstract Base Classesare great to enforce a common API for your subclasses.
You define one or more methods and/or properties as abstract in the base class, and if the subclass does not implement them it raises a
TypeError. In this bite you will use this concept as follows:
- Define a Challenge base class that inherits from
ABC(given), its constructor receives a
- On Challenge define an
property(< 3.3 it would be an
- Create the
BiteChallengeclasses which both inherit from
Challenge. Note that they would raise a
TypeErrorat this point, exactly what you want: enforcing the use of the abstract method/ property.
BiteChallenge's constructors call the parent constructor (don't worry it's supercool, remember: we use Python3 so adjust your syntax), and both receive an extra argument in the constructor:
- Implement the required methods and properties, refer to the tests what they need to return.
Get coding, learn more about classes, and have fun!