What is an abstract class in PHP?
What is an abstract class in PHP?
abstract-class
Is it possible to make abstract classes in Python?
How can I make a class or method abstract in Python?
Why use Abstract Base Classes in Python?
Because I am used to the old ways of duck typing in Python, I fail to understand the need for ABC (abstract base classes). The help is good on how to use them.
Abstract attributes in Python
TypeError: Can’t instantiate abstract class B with abstract methods a
Difference between abstract class and interface in Python
What is the difference between abstract class and interface in Python?