On Fri, Apr 15, 2011 at 1:33 AM, Algis Kabaila <akabaila at pcug.org.au> wrote: > Hi, >> An elementary question that is bugging me, regarding sys.path > values.sys.path can be altered easily, but the changes last for > the current session only. I would like the changes to stay for > several sessions. Is PYTHONPATH a system variable that sets the > path for several sessions and if so, where in the system is it? It is an environment variable: http://en.wikipedia.org/wiki/Environment_variable Alternatively, you can use a .pth file to add directories to the module search path: http://docs.python.org/library/site.html Cheers, Chris