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Utilizing Metaprogramming in Python

Metaprogramming is not often something that we need to use, but when we do it is there. If avoidable, it is probably recommended to not rely on metaprogramming because it is hard for other programmers to understand. In this hands-on lab, we'll be building a metaclass to make it easy to create database models. By the time you've finished this lab, you'll have demonstrated a good grasp of how to create a metaclass and a common way to use metaprogramming.

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Path Info

Clock icon Advanced
Clock icon 1h 15m
Clock icon Mar 26, 2021

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Table of Contents

  1. Challenge

    Create ModelClass Metaclass and Add a Dynamic Initializer

    Create a subclass of the type class and implement the __new__ method. From here, create and attach an initializer based on the annotations on the class.

  2. Challenge

    Build and Attach get_by_xxx Class Methods for Each Attribute on the Model

    For each of the annotations on the class build a get_by_xxx method and attack it as a class method.

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