Simple, run each project on their own port, in their own terminal if you want to do it that way.   The best way is to emulate a live environment within a virtual environment.  The way I do it is I have an Ubuntu virtual machine (use virtual box or whatever) with a bridged static IP with openDNS resolving, each project has its own python virtual environment, and each project's application runs on its own apache2/modwsgi virtual host - mod wsgi using the WSGIRestrictEmbedded mode, you can have unlimited projects served simultaneously at a domain of your choosing, AKA site1.me  site2.me etc.  Check out the Google group for modwsgi , there's tons of information in there.  In this way way you are developing in environment that is basically identical to a live environment.  Local static development sucks, this is the best way.