I new to Zope.  I'm attempting to access Python modules from within Zope.  These modules are programs we've written, that import stuff like wxWindows or our .py modules.  The "Extensions" folder is not the thing to use, apparently.  I'm not clear if adding an "External Method" or "Script" is the thing to do.  None of the books we have talk clearly about how to do this.  I need some step-by-step directions with this.  Any suggestions?

Thanks!
Mark