I started using pip -t ever since I started coding for AppEngine. I prefer it to a virtualenv becaus it works out a lot neater with the dev server. App engine's

I started using pip -t ever since I started coding for AppEngine. I prefer it to a virtualenv becaus it works out a lot neater with the dev server. App engine's earlier approach was to use either virtualenv or pull all the dependencies' code down into the project directory but lately, the App Engine team have started recommending using pip -t instead.