Gtk.CellRenderSpinner in python

CellRendererSpinner.py

import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk 
from gi.repository import GObject

class Window(Gtk.Window):
    def __init__(self):
        Gtk.Window.__init__(self, title='CellRendererSpinner')

        self.model = Gtk.ListStore.new([bool, int])
        self.model.append([True, 0]) 

        self.view = Gtk.TreeView(self.model)

        # column bool (as spinner)
        self.spinner_renderer = Gtk.CellRendererSpinner()
        col_bool = Gtk.TreeViewColumn('bool', self.spinner_renderer, active=0)
        self.view.append_column(col_bool)

        # column int
        col_int = Gtk.TreeViewColumn('int', Gtk.CellRendererText(), text=1)
        self.view.append_column(col_int)

        self.add(self.view)
        self.connect('destroy', Gtk.main_quit)
        self.show_all()

    def on_spinner_pulse(self):
        row0 = self.model[0]
        if row0[0]:
            row0[1] = 0 if row0[1] == 99 else row0[1] + 1 
        self.spinner_renderer.set_property("pulse", row0[1])
        return True

if __name__ == '__main__':
    win = Window()
    GObject.timeout_add(100, win.on_spinner_pulse)
    Gtk.main()