import gi

gi.require_version('Gtk', '3.0')

from gi.repository import Gtk

class TableWindow(Gtk.Window):

def __init__(self):

Gtk.Window.__init__(self, title="Table Example")

table = Gtk.Table(3, 3, True)

self.add(table)

button1 = Gtk.Button(label="Button 1")

button2 = Gtk.Button(label="Button 2")

button3 = Gtk.Button(label="Button 3")

button4 = Gtk.Button(label="Button 4")

button5 = Gtk.Button(label="Button 5")

button6 = Gtk.Button(label="Button 6")

table.attach(button1, 0, 1, 0, 1)

table.attach(button2, 1, 3, 0, 1)

table.attach(button3, 0, 1, 1, 3)

table.attach(button4, 1, 3, 1, 2)

table.attach(button5, 1, 2, 2, 3)

table.attach(button6, 2, 3, 2, 3)

win = TableWindow()

win.connect("delete-event", Gtk.main_quit)

win.show_all()

Gtk.main()