AttributeError: ‘super’ object has no attribute ‘getattr’ [Troubleshooting: Kivy]

Question

I am creating an android application using kivy.garden.mapviev, I want the user to be able to move the marker (hero icon) with buttons. when I add an int value to the value dumped from string to float, I convert the result back to string. when i try to do this i get an error. I execute the entire application code in one file, screen manager is a string in the file as screen_helper

when i try to execute the code get the error given in the subject. I'm new to: kivy / kivyMD, below application code and screenshots :.

screen_helper = """
ScreenManager:
    UsersPlayGameOnMap:
<UsersPlayGameOnMap>:
    name: 'screenmapmove'
    MapView:
        id: mapview
        lat: 40.41362602642995
        lon: -3.6819590868909984 
        zoom:19        
        max_zoom : 19
        min_zoom :19
        MapMarkerPopup:
            id: player_position
            source: "img/myicons/heromenuicon.png"
            lat: 40.41362602642995
            lon: -3.6819590868909984    
    MDIconButton :
        icon : "apps-box" 
        pos_hint: {'center_x':0.1,'center_y':0.1}
        user_font_size : 40 
        on_press: root.manager.current = 'UserPlatformFunctions'
    MDIconButton : 
        id : up  
        icon : "arrow-up-bold-box-outline"       
        pos_hint : {'center_x':0.5,'center_y':0.18}
        user_font_size : 40 
        on_press: root.buttonUP()
    MDIconButton : 
        id : down 
        icon : "arrow-down-bold-box-outline"       
        pos_hint : {'center_x':0.5,'center_y':0.1}
        user_font_size : 40 
        on_press: root.button_DOWN()

    MDIconButton : 
        id : right 
        icon : "arrow-right-bold-box-outline"       
        pos_hint : {'center_x':0.65,'center_y':.1}
        user_font_size : 40 
        on_press: root.button_RIGHT()
    MDIconButton :
        id : left  
        icon : "arrow-left-bold-box-outline"       
        pos_hint : {'center_x':0.35,'center_y':0.1}
        user_font_size : 40 
        on_press: root.button_LEFT()

"""

LATI=40.41362602642995
LONDI=-3.6819590868909984
SETTING = True

class UsersPlayGameOnMap(Screen):


    def buttonUP(self):
        self.pressUP = True

        self.pressDOWN = False
        self.pressLEFT = False
        self.pressRIGHT = False

        self.LoadPlayerObject()


    def button_RIGHT(self):
        self.pressRIGHT = True

        self.pressDOWN = False
        self.pressUP = False
        self.pressLEFT = False

        self.LoadPlayerObject()


    def button_LEFT(self):
        self.pressLEFT = True

        self.pressRIGHT = False
        self.pressDOWN = False
        self.pressUP = False

        self.LoadPlayerObject()


    def button_DOWN(self):
        self.pressDOWN = True

        self.pressUP = False
        self.pressLEFT = False
        self.pressRIGHT = False

        self.LoadPlayerObject()


    def LoadPlayerObject(self):

        if SETTING == False:
            self.player_pos_pion = self.localpion
            self.player_pos_poz = self.localpoz


        if SETTING == True:
            self.ids.mapview.lat = LATI
            self.ids.mapview.lon = LONDI
            self.player_pos_pion = LATI
            self.player_pos_poz = LONDI
            self.SETTING = False

        longitude = float(self.player_pos_poz)
        latitude = float(self.player_pos_pion)

        if self.pressUP == True:
             latitude +=0.001

        if self.pressDOWN == True:
            latitude -=0.001

        if self.pressLEFT == True:
            longitude -=0.0001

        if self.pressRIGHT == True:
            longitude +=0.0001

        self.localpoz = longitude
        self.localpion = latitude
        self.PLAYER_POSITION()


    def PLAYER_POSITION(self):

        my_lat = NumericProperty(self.localpion)
        my_lon = NumericProperty(self.localpoz)

        playerpos = App.get_running_app().root.ids.player_position
        playerpos.lat = NumericProperty(my_lat)
        playerpos.lon = NumericProperty(my_lon)
        mapposition = App.get_running_app().root.ids.mapview
        mapposition.center_on(my_lat,my_lon)


sm = ScreenManager()
sm.add_widget(UsersPlayGameOnMap(name='screenmapmove'))

class gameapp(MDApp):

    def build(self):
        self.screen = Builder.load_string(screen_helper)
        return self.screen


gameapp().run()

score 0 · Answer 1 · answered Dec 17 '21 at 20:30

Your error is that you are trying to access the player_position (and later, the mapview) ids in the root widget of your App, which is the ScreenManager. But those ids are defined in the rule for the UsersPlayGameOnMap, so that is where those ids are. To access those ids, you need to do it through your instance of UsersPlayGameOnMap. Something like this:

    game_screen = MDApp.get_running_app().root.get_screen('screenmapmove')
    playerpos = game_screen.ids.player_position
    .
    .
    .
    mapposition = game_screen.ids.mapview

In that same code, you have a problem with your use of NumericProperty. Properties should be defined inside a class, but outside of any method. See the documentation.

AttributeError: ‘super’ object has no attribute ‘__getattr__’ [Troubleshooting: Kivy]

1 Answers1

AttributeError: ‘super’ object has no attribute ‘getattr’ [Troubleshooting: Kivy]