Issue
How can I deploy and host multiple python projects with different dependancies on the same server at the same time?
Solution
It's not true of course that only one virtualenv can be activated at once. Yes, only one can be active in a shell session at once, but your sites are not deployed via shell sessions. Each WSGI process, for example, will create its own environment: so all you need to do is to ensure that each wsgi script activates the correct virtualenv, as is (in the case of mod_wsgi at least) well documented.
Answered By - Daniel Roseman Answer Checked By - Clifford M. (WPSolving Volunteer)