• in the root folder (same level as manage.py) create file .env for storing passwords, logins, etc

SECRET_KEY=$fm-9j$4h@smnqh-d$*3
GITHUB_API_KEY=$fm-9j$4h@smx743eqh-d$*3
ALLOWED_HOSTS='["127.0.0.1"]'

• in settings.py and all files always get secret variables from .env

import os
import json

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = os.environ.get("SECRET_KEY")
ALLOWED_HOSTS = json.loads(os.environ['ALLOWED_HOSTS'])

• in the root folder create also file .gitignore and put all files you do not want to share on Github (.env, database, text editor setup, etc)

# misc
.DS_Store
.env

• PRE-COMMIT ( https://pre-commit.com/ )
  • pipenv install pre-commit --dev && pipenv shell && pre-commit --version
  • create .pre-commit-config.yaml file in the root folder (same level as pipfile, .env ...)
  • pipenv pre-commit install and after each commit all the files will be controlled and corected, so you have to add them and commit them again

repos:
  - repo: https://github.com/ambv/black
    rev: 20.8b1
    hooks:
      - id: black
  - repo: https://github.com/prettier/pre-commit
    rev: v2.1.2
    hooks:
      - id: prettier
        entry: prettier --write --single-quote --trailing-comma=all
        files: "\\.(\
          css|less|scss\
          |graphql|gql\
          |js|jsx\
          |json\
          |md|markdown|mdown|mkdn\
          |mdx\
          |ts|tsx\
          |yaml|yml\
          )$"
  - repo: https://github.com/pre-commit/pre-commit-hooks
    rev: v3.2.0
    hooks:
      - id: trailing-whitespace
      - id: end-of-file-fixer
      - id: debug-statements
  - repo: https://github.com/hadialqattan/pycln
    rev: v0.0.1-beta.0 # Possible releases: https://github.com/hadialqattan/pycln/tags
    hooks:
      - id: pycln

Resources:

➡️https://pre-commit.com/

➡️https://codeburst.io/tool-your-django-project-pre-commit-hooks-e1799d84551f

➡️https://davit.tech/django-pre-commit/