Command to activate / create Python virtual environmment

.zshrc

# Do not use the alias `python3` 
# For this to work properly, explicitly specify the python version as necessary on your system
function venv {
    default_envdir=".venv"
    envdir=${1:-$default_envdir}

    if [ ! -d $envdir ]; then
        python3.12 -m venv $envdir
        python3.12 -m pip install ruff
        echo -e "\x1b[38;5;2m✔ Created virtualenv $envdir\x1b[0m"
    fi
    source $envdir/bin/activate
    export PYTHONPATH=`pwd`
    echo -e "\x1b[38;5;2m✔ Activated virtualenv $envdir\x1b[0m"
    python3.12 --version
}