[Zope] A question on how external methods reference modules

I basically created two modules. In module1.py I have my stub function that chains to module2.py. module1.py import module2 def ReturnData(): """Return some test data""" return module2.GetTheData() module2.py def GetTheData(): """Return the actual data""" return """the actual data""" I can run this in python and an error that 'module2' wasn't found so I had to append it's path using the sys.path.append function. Now I'm not getting an error so I think it's finding module2 but it doesn't seem to be finding the function. I'm confused. Can anyone explain what's going on? As a second part of the question, will this allow me to modify the external modules without re-loading them into Zope?