Abstract Base Classes: Smart Use of Metaclasses in Python

We are pleased to have Leonardo Giordani present Abstract Base Classes and why you should learn how to use them effectively.

Leonardo will:

• introduce to the concept of Python Abstract Base Classes (ABCs),

• explain how they can categorise objects, and

• show how to implement a virtual inheritance tree

You'll see that meta-classes are not an overly complex idea, but something that can be used by many developers to good effect.

The talk will be divided into three levels , starting with basics, and progressing deeper into the technical aspects of ABCs:

• Level 1: EAFP and complex tests - Polymorphism - Collections

• Level 2: Registering - Abstract Base Classes - Categories

• Level 3: Build your ABCs - MRO with metaclasses - Mixins - Interfaces

After attending this talk you will have a better understanding of how Python itself works internally, and know when and how to use ABCs.