Hi, With all the dependency cleanup going on in the ZTK (and grok 1.1alpha) we wanted to try it out with our internal packages. So: removing unneeded dependencies from code. "If you import from it, you must mention it as a dependency in your setup.py", so the setup.py needs cleaning up, too. To make that easier, I made z3c.dependencychecker that gives you a handy report on what to add or remove. Be careful and do some grepping of your own, too. And run the tests. And watch out for the obvious naming problems like PIL/Imaging and ZODB/persistence/btree. Anyway: 1.0 is just out: http://pypi.python.org/pypi/z3c.dependencychecker I've already fixed up grok's grokcore packages with this (and our intenral ones), so it is tested on a reasonable set of packages. Reinout