Unmet dependencies on Feisty installing SchoolTool

knix@edu:~$ sudo apt-get install schooltool
Reading package lists... Done
Building dependency tree
Reading state information... 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:
  schooltool: Depends: python2.4-schooltool (= 0.11.4-1ubuntu4) but it is not going to be installed
E: Broken packages
knix@edu:~$ sudo apt-get install python2.4-schooltool
Reading package lists... Done
Building dependency tree
Reading state information... 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:
  python2.4-schooltool: Depends: python (< 2.5) but 2.5.1~rc1-0ubuntu3 is to be installed
                        Depends: python2.4-schoolbell (>= 1.2.4) but it is not going to be installed
                        Depends: python2.4-schoolbell (< 1.3) but it is not going to be installed
E: Broken packages