export WORKON_HOME=~/python-envs
mkdir -p $WORKON_HOME

function workon() {
    if ! { [ "$TERM" = "screen" ] && [ -n "$TMUX" ]; } then
        if ! { [ -z "$1" ] } then
            tmux setenv VIRTUAL_ENV "$1"
        fi
        source /usr/bin/virtualenvwrapper.sh
        workon "$@"
    fi
}

if [ -n "$VIRTUAL_ENV" ]; then
  workon $VIRTUAL_ENV
fi