Comment 6 for bug 189915

I was pointed to this ticket about dapper+bzr packages not working, but I'm not sure if my problem is the same. At least, it seems the problem is not *just* python-central; it's also python2.5 (which isn't in Dapper at all) and libc versions. Here's what's happening:

radix@ubuntu:~$ sudo apt-get install bzr
Reading package lists... Done
Building dependency tree... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.

Since you only requested a single operation it is extremely likely that
the package is simply not installable and a bug report against
that package should be filed.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
  bzr: Depends: libc6 (>= 2.7-1) but 2.3.6-0ubuntu20 is to be installed
       Depends: python (> 2.5) but 2.4.2-0ubuntu3 is to be installed or
                python-celementtree but it is not installable
       Depends: python-central (>= 0.5.50) but it is not installable
E: Broken packages
radix@ubuntu:~$