I'm trying to debug my Zope installation. But I'm failing to do so. Does anyone know a good way to do this?

Depends on what you need to debug. The usual way is to watch the logs and the tracebacks, and whatever symptoms are occuring. Use your gut, experience, the source, and the algorithm-prover in your head. If you want to get a little deeper, you can use good old printlining, both in the Zope core and in your own products. If it is a security problem or an FTP problem, there are products to give you more information on what's happening: search the lists, they come up often. I'm not familiar with any IDEs or debugging tools -- not that there aren't any: I just don't use 'em. If you really want to do so, I'm sure you can setup up something like this with regular Python tools and use breakpoints or stepthrough or whatnot. --jcc