Jam/main.py

from kivy.app import App
from kivy.uix.widget import Widget
from kivy.config import Config

from cross import Cross,Cross_painter

# App class
class Jam_app(App):
    # name of .kv file for main interface
    #kv_file="jam.kv"

    def build(self):
        parent=Widget()
        self.cross_painter=Cross_painter()
        parent.add_widget(self.cross_painter)
        return parent



# disable red circles on right click
Config.set('input', 'mouse', 'mouse,disable_multitouch')

# run
if __name__ == '__main__':
    Jam_app().run()