Attributeerror 'button' Object Has No Attribute Scrlfbtn

from kivy.app import App from kivy.uix.boxlayout import BoxLayout from kivy.uix.label import Label from kivy.core.window import Window from kivy.uix.scrollview import ScrollView fr

Solution 1:

Your code has several errors and bad programming practices:

• if you declare variables that are inside a class and outside any method of the class will be class variables and not attributes of the class, so it is not a good practice to do so if you want to use later self, all that code must be within a method of a class.

• on_someproperty wait as parameter a function that receives parameters, in your case sas() does not receive them so the solution is to use a lambda method.

---

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.label import Label
from kivy.uix.scrollview import ScrollView
from kivy.effects.scroll import ScrollEffect
from kivy.uix.button import Button

classBSGameMain:
    def__init__(self):
        self.blmain = BoxLayout(orientation = 'vertical') # MainBoxLayout init

        self.scrlFBtns = ScrollView(effect_cls = 'ScrollEffect')

        self.blbtns = BoxLayout(
            orientation = 'vertical',
            size_hint_y = None )

        self.blbtns.bind(minimum_height = self.blbtns.setter('height'))
        self.scrlFBtns.add_widget(self.blbtns)

        for i inrange(2):
            self.blbtns.add_widget(Button(
                text='asd',
                size_hint_y = None,
                height = 40,
                on_press = lambda *args: self.sas()))

        lblmain = Label(text = 'asd')
        self.blmain.add_widget(lblmain)
        self.blmain.add_widget(self.scrlFBtns)

    defsas(self):
        self.scrlFBtns.remove_widget(self.blbtns)


classBSApp(App):
    defbuild(self):
        game = BSGameMain()
        return game.blmain

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