On Fri, 22 Jun 2001, Joachim Werner wrote:
Transparent Folders are used very often at iuveno. And we would like to do so in the future because they really provide an easy way to structure objects in folders. But with Zope 2.3.3 we get errors like that when we start an instance that uses Transparent Folders:
I've been getting several messages about this and today finally had time to investigate. It turns out that Globals.py is a little fragile--the new InitializeClass alias gets initialized at the bottom of the file. The import of ImageFile causes a whole series of things to be imported before InitializeClass is set up. Transparent folders always changed the order of import somewhat, and the recent addition of InitializeClass() to AccessControl/Role.py is what finally pushed Zope "over the edge", so to speak. The "right" solution is to patch Globals.py the same way I patched it today (on the CVS trunk). I moved the "InitializeClass = default__class_init__" statement to the line after the default__class_init__ import. This will be in effect in the beta release of Zope 2.4.0, but since I don't think we'll see a Zope 2.3.4, I didn't bother updating the Zope 2.3 branch. Tomorrow I hope to release a version of TransparentFolders that works around the problem, so you can wait for that instead if you like. I'm glad to know the product is being used. I don't think it will be in the core distribution since it causes a performance hit. Shane