Installing-Different-Versions-of-Python-and-Managing-Virtual-Environments

This guide provides a step-by-step process to install different versions of Python and manage them using virtual environments.

Steps

1. Add the Deadsnakes Repository

sudo add-apt-repository ppa:deadsnakes/ppa

2. Update Package Lists

sudo apt update

3. Install Python 3.9 (or other versions)

sudo apt install python3.9

4. Install the venv Package for Python 3.9

sudo apt install python3.9-venv

5. Make a (hidden) Folder for Virtual Environments

mkdir ~/.venvs

6. Create a New Virtual Environment my-venv-name with Python 3.9

python3.9 -m venv ~/.venvs/my-venv-name

7. Activate the New Virtual Environment my-venv-name

source ~/.venvs/my-venv-name/bin/activate

8. Check the Python Version Inside the Virtual Environment

python -V

9. Check the Pip Version Inside the Virtual Environment

pip3 --version

10. Deactivate the Virtual Environment (After finish using the VENV)

deactivate