Jon Emmons wrote at 2007-5-31 11:06 -0400:
... I still don't know why python errors will just quietly cause things to fail with no zope error at all. Nothing... That may be something I just have to live with. Very difficult to debug and develop with though.
This is a *very* unusual behaviour of Zope. I have never seen it (or heard about it before your post). I know of only a single problem where Zope does not reliably report problems: when a product cannot be imported during startup, then the only hint may be in Zope's logfile -- especially, the product may not seem to be broken in "Control_Panel --> Product management. But that is definitely not your problem.
Syntax errors I can find by simply importing the external method into the python interpreter. But dealing with the form variables, I will often have runtime errors that give no message at all.
I fear somehow you have screwed up your Zope. It behaves differently from how we know it. To be sure: you look into the "error_log" object in the ZMI, have removed any "exceptions to be ignored" and nevertheless do not see any error log messages there? -- Dieter