While trying to install python-simplejson I get the error:

python-simplejson: Depends: python (< 2.6) but 2.6.2-0ubuntu1 is to be installed


I made a new installation from 7.10->8,04->8.10->9.04 just without doing anything in between. I got python 2.5.4-1ubuntu4 and 2.6.2-0ubuntu1 installed

now i realize that this error existed 3 months ago, but i couldnt google a helping solution, neither does this forum's search work