if myDiary isn’t working for you and typing

$python /usr/share/myDiary.py doesn’t return any desirable results? such as:

import gtkspell ImportError: No module named gtkspell

then you might be missing some modules – gtkspell in this case.

Try installing python-gnome2-extras to see if that helps (just sudo apt-get it via terminal).

gtkspell, modules, python-gnome2-extras