https://en.wikipedia.org/wiki/Places_in_Harry_Potter#Stalls
$ pip install virtualenv
$ sudo pip install --upgrade pip
$ sudo pip install pip-tools
$ virtualenv venv
$ . ./venv/bin/activate
$ pip install -r requirements.txt
$ cp .env.sample .env
Edit .env
according to your envrionments.
$ honcho start
$ ./babel.sh pot
$ ./babel.sh update
(edit translations files)
$ ./babel.sh build