The python default version changed to 2.2 in unstable. Your package depends on
python (>= 2.1), python (<< 2.2) which makes it uninstallable in unstable. Please either - check that your packages works with python2.2 and change the dependency to python (>= 2.2), python (<< 2.3) - or if your package does not work with python 2.2, change the dependency to `python2.1'. This needs to be done at least for all zope packages (zope 2.5.1 is not compatible with python2.2). If your package is a library package, you may consider supporting the python2.3 version as well (if you already build python2.1-foo and python2.2-foo packages). For packages not beeing converted, I will file bug reports next week. Matthias