how to install django 2.2 if i already have one code example
Example 1: install django
pip install django # Install Django Packages
django-admin startproject project_name # Create a Project
cd project_name
python manage.py makemigrations # Create new migrations
python manage.py migrate # Apply Migrations
python manage.py createsuperuser # Create User for admin
python manage.py runserver # Start Server
python manage.py startapp sub_module # Create a sub app
Example 2: pip install django
$ python -m pip install Django