Lesson 2 - Django Projects & Apps

LEARN

Reading - Django for Beginners

• Chapter 2 - Hello World App

Github

• Github is the best version control service available
• It is a web service that hosts thousands of users and millions of projects
• By January 2020 - 40 million users, over 100 million repositories

Git

• Invented by the creator of Linux
• Save every version of every file
• Work individually or with thousands of developers
• Put everything under version control

Using Github

• All assignments will be completed using Github
• All pages you create will be saved in your Github repo

Virtual Environments

• You may need many different Python environments for different packages
• Each environment may use different packages
• Python provide Virtual Environments to isolate projects from each other

Activate Virtual Environment

• All work in Python should be done in a VENV
• Each work session starts by activating the environment
• This lets you use different libraries for each project

BUILD

Development Workflow

• Edit - make a small (1-3 lines) change to your code
• Test - run the server and browse to page
• Commit - commit changes every hour
• Repeat - work in small iteration, don't ignore bugs

Install Python Code Editor

• Install Visual Studio Code if needed
• Download and install on your machine
• Run Visual Studio

Tiled Windows

• Editor - Brackets
• Terminal - Run Django Server and file commands
• Browser - Instructions, Test Page, Github, BACS 350

Create New Project

Activate the Virtual Environment

$ cd BACS350

$ pipenv shell

Create a new directory

$ cd week1

$ mkdir Hello

$ cd Hello

Create a Django project

$ django-admin startproject config .

Run Development Server

Run the web server

$ python manage.py runserver

Don't worry about the warning for "unapplied migrations"

Browse to web page

http://localhost:8000

You should see

Use Ctrl-C to kill the server

Commit Your Code

Git add

$ git add .

$ git status

Git commit

$ git commit -m 'Create Hello app'

$ git status

Get push

$ git push

$ git status

Project 1 - Part B

• Complete Project 1 B Instructions

Commit all of your code and push

• Project Tester

Next Lesson

Configure a Django project and build views