Python/Go switcher

#!/bin/bash
# http://www.reddit.com/r/AppEngine/comments/1akmrp/does_installing_the_app_engine_sdk_for_both/
# for TheMagicHorsey

python_server= #Path to python server
go_server= #Path to go server i.e. $HOME/Dev/go_appengine/dev_appserver.py


if [ "$1" == "python" ]
    then
    server_path=$python_server
    echo "Switching to python..."
elif [ "$1" == "go" ]
    then
    server_path=$go_server
    echo "Switching to go..."
else
    echo "Valid options: python or go"
    exit
fi

ln -f -s $server_path /usr/local/bin/dev_appserver.py