Install libgtk2-ex-simple-list-perl by entering the following commands in the terminal:
sudo apt update sudo apt install libgtk2-ex-simple-list-perl
Description:
simple interface to Gtk2's complex MVC list widget
Gtk2::Ex::Simple::List is a simple interface to the powerful but complex Gtk2::TreeView and Gtk2::ListStore combination, implementing using tied arrays to make thing simple and easy.
Homepage: http://search.cpan.org/dist/Gtk2-Ex-Simple-List/
Version: 0.50-2
Section: universe/perl