Accessing String from .py file to TextInput of .kv file

[Ketaki Kulkarni]

Hello,
When I press a button I want text from the string in the TextInput of .kv file.

.py file
class A():
    input=StringProperty(' ')
    def fun1():
        input=something

.kv file
Button:
        id: grammar_button
        text: 'Check Grammar'
        on_release: self.main()

TextInput:
        text:????? - Here I want to get the text of "input" and display it in GUI.

Thank you.
Regards,
Ketaki

[ZenCODE]

Try putting together some run-able code that we can help you with. There are too many unknowns/issues with the code above to be helpful.

Thanks

[Ketaki Kulkarni]

Edit :
Now I have added my two files and a screenshot.Please have a look on it .
Thank you

[ZenCODE]

You can add a method to your Root class.

class Root(BoxLayout):

    def print_text(self, text):
        print("Tesxt is ", text)

Then just call if from you kv file. In speech.kv

GrammarButton:

    id: grammar_button
    text: 'Check Grammar'

    # on_press : self.main()
    # on_release : text1.text=grammar_button.final_text
    height: '50dp'
    size_hint_y: None
    on_release: root.print_text(text1.text)