- Lab
- Cloud
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.
Path Info
Table of Contents
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Challenge
Create ModelClass Metaclass and Add a Dynamic Initializer
Create a subclass of the
typeclass and implement the__new__method. From here, create and attach an initializer based on the annotations on the class. -
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_xxxmethod and attack it as a class method.
What's a lab?
Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.
Provided environment for hands-on practice
We will provide the credentials and environment necessary for you to practice right within your browser.
Guided walkthrough
Follow along with the author’s guided walkthrough and build something new in your provided environment!
Did you know?
On average, you retain 75% more of your learning if you get time for practice.