leap client ubuntu quantal package: Depends: python-jsonschema (>= 0.7.0) but 0.2-1 is to be installed

apt-get install leap-client python-jsonschema
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.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 leap-client : Depends: python-jsonschema (>= 0.7.0) but 0.2-1 is to be installed
E: Unable to correct problems, you have held broken packages.
root@rocinante:/etc/apt/sources.list.d# LANG=EN apt-get install leap-client 
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.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 leap-client : Depends: python-jsonschema (>= 0.7.0) but 0.2-1 is to be installed
E: Unable to correct problems, you have held broken packages.

explicitly naming the version of python-jsonschema did the trick:

apt-get install leap-client  python-jsonschema=0.8.0~leap12.10+1

But we should take care that this could be installed easier.

(from redmine: created on 2013-02-14, closed on 2013-02-19)