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  • Book Overview & Buying Python Programming Blueprints
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Python Programming Blueprints

Python Programming Blueprints

By : Riti, Furtado, Pennington
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Python Programming Blueprints

Python Programming Blueprints

4 (2)
By: Riti, Furtado, Pennington

Overview of this book

Python is a very powerful, high-level, object-oriented programming language. It's known for its simplicity and huge community support. Python Programming Blueprints will help you build useful, real-world applications using Python. In this book, we will cover some of the most common tasks that Python developers face on a daily basis, including performance optimization and making web applications more secure. We will familiarize ourselves with the associated software stack and master asynchronous features in Python. We will build a weather application using command-line parsing. We will then move on to create a Spotify remote control where we'll use OAuth and the Spotify Web API. The next project will cover reactive extensions by teaching you how to cast votes on Twitter the Python way. We will also focus on web development by using the famous Django framework to create an online game store. We will then create a web-based messenger using the new Nameko microservice framework. We will cover topics like authenticating users and, storing messages in Redis. By the end of the book, you will have gained hands-on experience in coding with Python.
Table of Contents (11 chapters)
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Creating the model's managers


To make our application more readable and not clutter the endpoints with a lot of business logic, we are going to create managers for our model classes. If you followed the previous chapter, you should be very familiar with this. In a nutshell, managers are an interface that provide query operations to Django models.

Note

By default, Django adds a manager to every model; it is stored on a property named objects. The default manager that Django adds to the models is sometimes sufficient and there's no need to create a custom manager, but it is a good practice to keep all database-related code within the model. This will make our code more consistent, readable, and easier to test and maintain.

In our case, the only model we are interested in creating is a custom model manager called Order, but before we start implementing the order manager, we need to create a few helper classes. The first class that we need to create is a class that will define custom exceptions...

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Python Programming Blueprints
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