Use Virtual Python Environment Venv
# Create virtual environment (once)
python3 -m venv venv
# Activate virtual environment
source venv/bin/activate
# Upgrade pip (once)
python -m pip install --upgrade pip
# List installed packages
python -m pip list
# Install a package
python -m pip install <package>
# Run script.py
python script.py
# Deactivate virtual environment
deactivate