Hi, Can anyone point me towards documentation / howtos / information on handling exceptions in python scripts (scripts not 'external methods'). I have a core set of page templates that determine their content based on the traverse_subpath. Due to the inability of some browsers to understand the base tag, I have just re-implemented this logic python. However, I cannot handle the exceptions in python. Using page templates I can handle exceptions, but not using a python script. I want such logic as: pt = container.x return pt() except AccessControl.unauthorized.Unauthorized: return container.acl_users.redirectToLogin(request) except ... NotFound : .... except: ... But access to the python exception functionality is not available. Furthermore, access to the sys variables for exceptions are also not available. When I use page templates I have a variable called '_', and can do some nasty work .... error = _['error'] if str(error.type) == "AccessControl.unauthorized.Unauthorized": return container.acl_users.redirectToLogin(request) However, there is no _ in the python script. So I need to have scripts calling page templates calling scripts so that I can get the exception information. This is the sort of coding that makes Visual Basic look clean! This problem is so fundamental that I am sure there is plenty of documentation in the zope site. Unfortunately, I cannot find it. If anyone can point me to the HowTos or other documentation on this problem, I would be grateful. Thanks in advance, Kevin Gill PS - Remember the question is about python scripts. Please do not send me messages about external methods.