switch to actual abstract base class

[jamesoncollins]

The base_handler.py file from the turbo-bot repository defines an abstract base class named BaseHandler. This class serves as a blueprint for creating specific handler classes within the bot framework.

In Python, abstract base classes (ABCs) are used to define a common interface for a group of related classes. They can include abstract methods, which are methods declared but contain no implementation. Subclasses inheriting from an ABC are required to provide concrete implementations for these abstract methods. This approach ensures that certain methods are consistently implemented across all subclasses, promoting a uniform interface and facilitating polymorphism.

To define an abstract base class in Python, you typically use the ABC class from the abc module and decorate abstract methods with the @abstractmethod decorator. Here's a general example:

from abc import ABC, abstractmethod

class BaseHandler(ABC):
    @abstractmethod
    def handle(self, data):
        pass

In this example, BaseHandler is an abstract base class with an abstract method handle. Any subclass of BaseHandler must provide an implementation for the handle method; otherwise, instantiating the subclass will result in a TypeError.

For more detailed information on abstract base classes in Python, you can refer to the following resources:

• Abstract Base Class (abc) in Python - GeeksforGeeks
• Python - Abstract Base Classes - Online Tutorials Library

These resources provide comprehensive insights into the purpose, implementation, and usage of abstract base classes in Python.