my $model = Gtk3::ListStore->new('Glib::String');
my $list = Gtk3::TreeView->new();
$list->set_model($model);
my $cell = Gtk3::CellRendererText->new();
$cell->set('editable'=>1);
my $column = Gtk3::TreeViewColumn->new_with_attributes('name',$cell,'text',$i);
$list->append_column($column);
####
http://python-gtk-3-tutorial.readthedocs.org/en/latest/cellrenderers.html#cellrenderertext
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$list->set($iter,0,'edited text here');