Hello, I would like to propose a new mechanism in Python, to deal with package dependencies. It is described here http://tarekziade.wordpress.com/2008/12/15/python-isolated-environment-pie/ Like PJE mentioned in the blog comments, I still need to describe in details how the versions are handled, But does it sounds like a good idea ? Regards, Tarek -- Tarek Ziadé | Association AfPy | www.afpy.org Blog FR | http://programmation-python.org Blog EN | http://tarekziade.wordpress.com/