Python Virtual Environment Manager using PythonZ

.bashrc

RESET="\033[0m" # Normal
RED="\033[1m\033[1;31m" # Red
GREEN="\033[1m\033[1;32m" # Green
WHITE="\033[1m\033[1;37m" # White

pyvenv() {
    local venv_name=${1:-$(read -p "Enter the virtual environment name: " name && echo "$name")}
    local venv_home="$HOME/python-virtual-environs/$venv_name"

    if [[ -z "$venv_name" ]]; then
        echo -e "\n${RED}Error: Virtual environment name must be provided.${RESET}\n"
        return 1
    fi

    if [[ ! -d "$venv_home" ]]; then
        echo -e "${RED}$venv_home ${WHITE}doesn't exist: creating now."
        local python_version=${2:-$(read -p "Enter the Python version: " version && echo "$version")}
        local usepy="$(pythonz locate "$python_version")"

        if [[ -z "$usepy" ]]; then
            echo -e "\n${WHITE}Python version ${RED}$python_version ${WHITE}is not currently installed.\nInstalling now.\n"
            echo -e "${GREEN}pythonz install ${WHITE}$python_version${RESET}\n"
            pythonz install "$python_version"
            usepy="$(pythonz locate "$python_version")"
        fi
        echo -e "\n${GREEN}$usepy -m venv \"${WHITE}$venv_home${GREEN}\"\n"
        "$usepy" -m venv "$venv_home"
    else
        local usepy="$venv_home/bin/python3"
        local python_version=$("$usepy" --version 2>&1 | awk '{print $2}')
    fi

    echo -e "${WHITE}\n    \$usepy=$usepy"
    echo -e "    \$venv_name=$venv_name"
    echo -e "    \$venv_home=$venv_home"
    echo -e "    \$python_version=$python_version"
    echo -e "${GREEN}\n    source ${WHITE}$venv_home/bin/activate${RESET}"

    if source "$venv_home/bin/activate"; then
        echo -e "\nType 'deactivate' to exit this venv."
        echo -e "${RESET} "
    else
        echo -e "\n${RED}Well crap. Looks like something went wrong.${RESET}"
        return 1
    fi
}

echo -e "${WHITE}Using PythonZ, function pyvenv starts and enters a Python VENV, creating it if it doesn't exist."
echo -e "If 'venv_name' and 'python_version' are not supplied, pyvenv will ask you to provide them.\n"
echo -e "${GREEN}    pyvenv venv_name python_version${RESET}\n"