Book Image

Python Programming Blueprints

By : Daniel Furtado, Marcus Pennington
Book Image

Python Programming Blueprints

By: Daniel Furtado, Marcus 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 (17 chapters)
Title Page
Copyright and Credits
Dedication
Contributors
Packt Upsell
Preface
Index

Creating the service models


In the first part of the order service, we are going to create the model that will store data about the order coming from the online video game store. Let's go ahead and open the models.py file in the main app directory and start adding the model:

class OrderCustomer(models.Model):
    customer_id = models.IntegerField()
    name = models.CharField(max_length=100)
    email = models.CharField(max_length=100)

We will create a class called OrderCustomer that inherits from Model, and define three properties; the customer_id, which will correspond to the customer ID in the online game store, the name of the customer, and lastly, the email.

Then, we will create the model that will store information about the order:

class Order(models.Model):

    ORDER_STATUS = (
        (1, 'Received'),
        (2, 'Processing'),
        (3, 'Payment complete'),
        (4, 'Shipping'),
        (5, 'Completed'),
        (6, 'Cancelled'),
    )

    order_customer = models.ForeignKey(...