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

Adding login and logout views


Every online store needs some sort of user management. Our application's users should be able to create an account, change their account details, obviously log in to our application so they can place orders, and also log out from the application.

We are going to start adding the login and logout functionality. The good news is that it is super easy to implement in Django.

First, we need to add a Django form to our login page. Django has a built-in form of authentication; however, we want to customize it, so we are going to create another class that inherits from the Django built-in AuthenticationForm and add our changes.

Create a file called forms.py in gamestore/main/ with the following content:

from django import forms
from django.contrib.auth.forms import AuthenticationForm


class AuthenticationForm(AuthenticationForm):
    username = forms.CharField(
        max_length=50,
        widget=forms.TextInput({
            'class': 'form-control',
            'placeholder...