This .rvmrc automatically creates/activates a python virtualenv

virtualenv.rvmrc

# save this file in the top level directory of your project as ".rvmrc"
# the virtualenv will be created/activated when you cd into the dir
if hash mkvirtualenv 2>/dev/null; then
    virtualenv_name=$(basename `git rev-parse --show-toplevel`)
    workon "$virtualenv_name"
    if [ "$?" != "0" ]; then
       mkvirtualenv "$virtualenv_name"
       echo "\"pip install -r requirements.txt\" to install libraries"
    fi
fi