There are a number of people interested in ZAM, and a lot of discussion about a new ZMI, even an upcoming sprint so I am trying to do my part to get zam.demo installing correctly. Of course the error message was completely incomprehensible, I did not have the context. So step 1 is to figure out how ZAM works. I went to read the source code. Very nicely documented. Thanks to the authors. But there is no high level documentation, so I wrote this user level document. Writing this helped me understand ZAM better. And in general I think a great way for new developers to work with Zope is to write documentation, because then it helps us understand what we are doing, makes it easier to get feedback, and smooths the path for those coming after us. So here is where I left off six months ago. https://mail.zope.org/pipermail/zope-dev/2011-June/043089.html What follows is the updated version. ZAM User Documentation. ZAM is a browser based interface to BlueBream. It allows us to interact with the running BlueBream server. It provides three types of services. Administration services tell you about the Unix processes, and the ZODB databases. Error services tell you about server errors which have occurred. Hierarchy services allow one to interact with the ZODB hierarchy of objects. ADMINISTRATION SERVICES (zamplugin.control) This wepage has links to runtime information, ZODB information, Generations, and Registration. To access it you go to http://localhost/++skin++ZAM/++etc++ApplicationController/index.html The runtime information includes the following: Uptime, System platform, Zope version, Python version, Command line used to start the server, Preferred encoding, Process id, Developer mode on or off, and the Python path ZODB control includes a list of ZODB databases, their file system name, current size, and the ability to pack them, keeping up to X number of days of version. Generations describes the versions of ZODB schemas, and is a way of updating the objects as the schema changes. Impressive! Registrations allow objects to be registered as adaptors or user interfaces. This is a complex topic which requires an understanding of the Zope Component Architecture. In general beginners do not need to worry about this. ERROR SERVICES (zamplugin.error) You can see the error logs here. http://localhost/++skin++ZAM/++etc++site/default/RootErrorReportingUtility Looks very nice, much like the Zope 2 error reports. You get Time, User,and exception. You can click on the exception for more details, the Request URL, Traceback, user permissions, and the full REQUEST object. HIERARCHY SERVICES (zamplugin.sitemanager, zamplugin.navigation) Bluebream stores objects in the Zope Object Database. Objects are stored in a tree. The allows one to navigate the tree, browse objects, cut, copy, paste, and rename those objects. In the current version, when enabled, it is possible to add objects to the tree. In future versions this may also require developer permisssion. I am not sure which part of the interface is handled by the site manager, and which part is handled by navigation. zamplugin.sampledata From pypi: "A sample data generator is a pluggable tool to create data needed for tests." Not really sure what this does either. If you want to learn more about ZAM, go into the source code. Go into the eggs directory and type more zam*/zam*/*/README.txt That gets you all of the source code docs. There are several different sections. There is zam.api which provides the core functionality. There is the best README.txt in this section. It explains the ZAM plugin framework. You can add or remove a plugin, but obviously only once. It talks about a base registry plugin. They talk about the layers model. Layers are all about the stuff in the skin, described below. zam.skin contains all the "HTML, JS, CSS and image components" The other directories correspond to the user interfaces described above. QUESTION: So where should i put this documentation? My next step is to try to run zam.demo again, and see if the error message makes any more sense to me than it did this morning. -- Regards Christopher Lozinski Check out my iPhone apps TextFaster and EmailFaster http://textfaster.com Expect a paradigm shift. http://MyHDL.org