My yesterday "cvs update" let my Zope fail to start: Panic - startup exception; type error in "ZServer/HTTPServer". I analysed the problem: Apparently "asyncore.py" has been moved. "cvs update" had correctly remove the Python source but (of course) left alone the corresponding "*.pyc" file. Somehow, this old "*.pyc" file caused the problem. After manual removal, my Zope works again. Dieter