Kv Login example

gistfile1.txt

<LoginScreen@GridLayout>:
    my_username: username
    my_password: password
    
    rows: 2
    cols: 2
    padding: 5
    spacing: 5
    Label:
        text: 'User Name:'
    TextInput:
        id: username
    Label:
        text: 'Password:'
    TextInput:
        id: password
        password: True

kv_login

# http://kivy.org/docs/gettingstarted/rules.html
from kivy.app import App
from kivy.uix.gridlayout import GridLayout

class LoginScreen(GridLayout):
    pass

class LoginScreenApp(App):
    def build(self):
        screen = LoginScreen()
        return screen

if __name__ == "__main__":
    LoginScreenApp().run()