Book Image

Django 3 Web Development Cookbook - Fourth Edition

By : Aidas Bendoraitis, Jake Kronika
Book Image

Django 3 Web Development Cookbook - Fourth Edition

By: Aidas Bendoraitis, Jake Kronika

Overview of this book

Django is a web framework for perfectionists with deadlines, designed to help you build manageable medium and large web projects in a short time span. This fourth edition of the Django Web Development Cookbook is updated with Django 3's latest features to guide you effectively through the development process. This Django book starts by helping you create a virtual environment and project structure for building Python web apps. You'll learn how to build models, views, forms, and templates for your web apps and then integrate JavaScript in your Django apps to add more features. As you advance, you'll create responsive multilingual websites, ready to be shared on social networks. The book will take you through uploading and processing images, rendering data in HTML5, PDF, and Excel, using and creating APIs, and navigating different data types in Django. You'll become well-versed in security best practices and caching techniques to enhance your website's security and speed. This edition not only helps you work with the PostgreSQL database but also the MySQL database. You'll also discover advanced recipes for using Django with Docker and Ansible in development, staging, and production environments. By the end of this book, you will have become proficient in using Django's powerful features and will be equipped to create robust websites.
Table of Contents (15 chapters)

Deleting Python-compiled files

When you run your project for the first time, Python compiles all of your *.py code in bytecode-compiled files, *.pyc, which are used later for execution. Normally, when you change the *.py files, *.pyc is recompiled; however, sometimes when you switch branches or move the directories, you need to clean up the compiled files manually.

Getting ready

Use your favorite editor and edit or create a .bash_profile file in your home directory.

How to do it...

  1. Add this alias at the end of .bash_profile, as follows:
# ~/.bash_profile
alias delpyc='
find . -name "*.py[co]" -delete
find . -type d -name "__pycache__" -delete'
  1. Now, to clean the Python-compiled files, go to your project directory and type the following command on the command line:
(env)$ delpyc

How it works...

At first, we create a Unix alias that searches for the *.pyc and *.pyo files and __pycache__ directories and deletes them in the current directory, as well as its children. The .bash_profile file is executed when you start a new session in the command-line tool.

There's more...

If you want to avoid creating Python-compiled files altogether, you can set an environment variable, PYTHONDONTWRITEBYTECODE=1, in your .bash_profile, env/bin/activate script, or PyCharm configuration.

See also

  • The Creating the Git ignore file recipe