Thank you very much => i started the python interpreter, imported gtk and then i got, from gtk.gtk_version command the tuple : (2, 20, 1) Regards <div class="gmail_quote">2011/5/19 James Cameron <<a href="mailto:quozl@laptop.org">quozl@laptop.org</a>> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">On Wed, May 18, 2011 at 04:25:29PM +0200, laurent bernabe wrote: > + going to install pygtk2-doc package on my sugar : is the best way to <div class="im">> consult it is a text editor such as nano ? </div>No. On a Debian derived system, the package name is python-gtk2-doc, and when it is installed the files can be listed with dpkg --listfiles python-gtk2-doc There are example Python source files as well as reference and tutorial in HTML format. To open the HTML documentation in a way that makes it easiest to use, start your web browser and navigate to the page file:///usr/share/gtk-doc/html/pygtk/index.html For example firefox file:///usr/share/gtk-doc/html/pygtk/index.html Regarding the version of GTK+ the advice I gave you was wrong ... I was asleep. There was no reason for the -dev package to be present. Try this: dpkg-query -W -f='${Package} ${Version}\n' libgtk2.0\* Another way to find the version is with a Python program: >>> print gtk.gtk_version (2, 24, 3) And if you are writing code that depends on a particular version, you can call check_version >>> gtk.check_version(2, 8, 0) >>> gtk.check_version(0, 0, 0) 'Gtk+ version too new (major mismatch)' >>> gtk.check_version(44,44,44) 'Gtk+ version too old (major mismatch)' -- <div><div></div><div class="h5">James Cameron <a href="http://quozl.linux.org.au/" target="_blank">http://quozl.linux.org.au/</a> </div></div></blockquote></div>