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pythoninterfacearchitectureabstraction

python how to abstract the class of member variable

suppose that i have a module like below

class B:
  def ...
  def ...

class A:
  b: B

  def ...
  def ...

I use class B only as member variable of class A

when i try to abstract this module for my buisness logic, what should i do?

  1. one big interface, which has abstract method for class A and class B
  2. two interface, which has abstract method for class A and class B individually
  3. all above are wrong. another way
Solution

  • Both, 1 & 2 are correct approach, but it completely depends on your application.

    I think, two interfaces, which would have abstract method for class A and class B individually is the right approach when both of your classes have separate workings and are completely different from each other.

    But, as you have mentioned in your code that you have inherited class B in class A. If you create a single interface for class A, it will also allow you to access the methods from class B. So, this approach is good. Also, this approach will shorten the length of your code, resulting in fast processing.

    I hope this would help you to take your decision. Let me know if any other clarification required.