Hi all!
Meld depends on pygtk2.6 or later, but in the distribution there is
Package: python-gtk2
Version: 2.12.1-0ubuntu1
I suppose that it is better to remove the meld package from the distro,
couse it is not functional. In the dependences list of meld btw is
written, that it depends on python-gtk2 (>= 2.4). The 2.6 dependency
problem I've encountered was an error message written by meld on
startup. It is strange that aptitude installed meld without any
problems, despite I do not have installed the required version of
python-gtk2.