Book Image

Django 2 Web Development Cookbook - Third Edition

By : Jake Kronika, Aidas Bendoraitis
Book Image

Django 2 Web Development Cookbook - Third Edition

By: Jake Kronika, Aidas Bendoraitis

Overview of this book

Django is a framework designed to balance rapid web development with high performance. It handles high levels of user traffic and interaction, integrates with a variety of databases, and collects and processes data in real time. This book follows a task-based approach to guide you through developing with the Django 2.1 framework, starting with setting up and configuring Docker containers and a virtual environment for your project. You'll learn how to write reusable pieces of code for your models and manage database changes. You'll work with forms and views to enter and list data, applying practical examples using templates and JavaScript together for the optimum user experience. This cookbook helps you to adjust the built-in Django administration to fit your needs and sharpen security and performance to make your web applications as robust, scalable, and dependable as possible. You'll also explore integration with Django CMS, the popular content management suite. In the final chapters, you'll learn programming and debugging tricks and discover how collecting data from different sources and providing it to others in various formats can be a breeze. By the end of the book, you'll learn how to test and deploy projects to a remote dedicated server and scale your application to meet user demands.
Table of Contents (14 chapters)

Respecting the import order in Python files

When you create the Python modules, it is good practice to stay consistent with the structure in the files. This makes it easier for other developers and yourself to read the code. This recipe will show you how to structure your imports.

Getting ready

Create a virtual environment and create a Django project in it.

How to do it...

Use the following structure in a Python file that you create. Starting with the first line in the file, put the imports categorized in sections, as follows:

# System libraries
import os
import re
from datetime import datetime

# Third-party libraries
import boto
from PIL import Image

# Django modules

from django.db import models
from django.conf import settings

# Django apps

from cms.models import Page

# Current-app modules

from . import app_settings

How it works...

We have five main categories for the imports, as follows:

  • System libraries for packages in the default installation of Python
  • Third-party libraries for the additionally installed Python packages
  • Django modules for different modules from the Django framework
  • Django apps for third-party and local apps
  • Current-app modules for relative imports from the current app

There's more...

See also

  • The Handling project dependencies with pip recipe
  • The Including external dependencies in your project recipe