[Kivy] How to clear a TextInput field

[gio123]

Hi All,
I need to clear a TextInput field

This is my Python code

b2=(Button(text='Clear'))
self.add_widget(b2)
b2.bind(on_press=self.clsInputText)

def clsInputText(self):
   self.username=""

I receive this error message

TypeError: clsInputText() takes exactly 1 argument (2 given)

Any help will be greatly appreciated.
Thanks in advance for your kind support.
Regards,
Giovanni

[Larz60+]

which GUI package?

[buran]

from kivy.app import App
from kivy.uix.button import Button
from kivy.uix.textinput import TextInput
from kivy.uix.boxlayout import BoxLayout


class DemoApp(App):
    def build(self):
        self.box = BoxLayout(orientation='vertical', spacing=10)
        self.txt = TextInput()
        self.btn = Button(text='Clear', on_press=self.clear_txt)
        self.box.add_widget(self.txt)
        self.box.add_widget(self.btn)
        return self.box
        
    def clear_txt(self, instance):
        self.txt.text = ''


if __name__ == '__main__':
    DemoApp().run()