Comment 3 for bug 805141

I've installed gnome-specimen with synaptic and tryed execute.
How I saw the package wasn't working, I opened a terminal and tryed execute manually, and got the error.

In sequece, I installed python with "apt-get install python-3-all" and tryed execute again. Then I started this post with the idea gnome-specimen should require python3 packages.

Now, I have another idea about the error, bu I'm not certainly about: My system could be using another python installation as default (like python 2.6). Since gnome-specimen points to python 2.7, the error happened, and after install python3, ubuntu updated my default python installation to python 2.7.

I got this second point after check /usr/bin/python points to python2.7 file in my system, and see gnome-specimen depends of this version. If the error can be confirmed like this, the error at package it's do not update python installation.