def on_status(self, t, environment, machines):
"""Callback invoked when the machines list is updated
"""
self.notebook.set_sensitive(True)
model = Gtk.ListStore(*(Machine.get_column_types()))
for machine in machines:
row = []
for column in Machine.get_column_names():
row.append(getattr(machine, column))
model.append(row)
self.machines.set_model(model)
self.selected_environment = environment
