Comment 9 for bug 857539

OK. The official version of schooltool is already in Ubuntu since 11.04 . You do not need to use the SchoolTool PPA anymore, although there will be updates in there.

Until yesterday, there were 1.9.* packages in the ppa for oneiric. Now the "flourish" packages are in a separate PPA, https://launchpad.net/~schooltool-owners/+archive/dev , so that accidents like yours won't happen.

The last version in Ubuntu is 1.7.0 and that's what you should be upgrading to on production system.

To revert to Oneiric packages, do:

$ sudo apt-get install schooltool/oneiric python-schooltool/oneiric python-schooltool.gradebook/oneiric python-schooltool.intervention/oneiric python-schooltool.lyceum.journal/oneiric