#!/usr/bin/env pythonimport pygtkpygtk.require('2.0')import gtkclass ComboBoxWrapExample:    def __init__(self):        window = gtk.Window()        window.connect('destroy', lambda w: gtk.main_quit())        combobox = gtk.ComboBox()        liststore = gtk.ListStore(str)        cell = gtk.CellRendererText()        combobox.pack_start(cell)        combobox.add_attribute(cell, 'text', 0)        window.add(combobox)        combobox.set_wrap_width(5)        for n in range(50):            liststore.append(['Item %d'%n])        combobox.set_model(liststore)        combobox.connect('changed', self.changed_cb)        combobox.set_active(0)        window.show_all()        return    def changed_cb(self, combobox):        model = combobox.get_model()        index = combobox.get_active()        if index > -1:            print model[index][0], 'selected'        returndef main():    gtk.main()    returnif __name__ == "__main__":    bcb = ComboBoxWrapExample()    main()