Since PCSIM is a package which extends python we first have to start python. E.g. on the command prompt just enter python . After this you should see something like:
Python 2.5 (r25:51908, Nov 27 2006, 19:14:46) [GCC 4.1.2 20061115 (prerelease) (SUSE Linux)] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>>
After the python interpreter has been started one has to load the PCSIM python module pypcsim
>>> from pypcsim import *
which makes all the functionality of PCSIM available in the python environment.