python-virtual-env-linux.md

Python virtual environment setup on Linux

1. Verify if Python and 'pip' are installed on the machine: python --version. If not install:

   • Python sudo apt install python3
   • 'pip': sudo apt install python3-pip

2. Install virtual environment package:

   • 'venv' virtual environment: sudo apt install python3-venv
   • 'virtuelenv' virtual environment: sudo apt install python3-virtualenv

3. Navigate to project directory cd python-project and create virtual environment:

   • For 'venv' virtual environment: python3 -m venv venv
   • For 'virtualenv' virtual environment: virtualenv venv

4. Activate the environment: source venv/bin/activate

5. Add libraries and create requirements.txt file

   • pip 'libraries to install'
   • pip freeze > requirements.txt (create the requirements.txt file enumerating the installed packages)

6. Deactivate the environment: deactivate