[Zope-dev] Zope options order sensitive

I'm just beginning my study of the zope source. Going through z2.py I noticed that order matters in specifying command line options. For instance: ./start -a 127.0.0.1 -P 8000 sets HTTP_PORT to: [('127.0.0.1', '8080')] but: ./start -P 8000 -a 127.0.0.1 sets HTTP_PORT to: [('', '8080')] I'm not far enough along yet to know if this makes a difference in the end. Does it? Chris