Without click it is running

[KurAgp]

def btn_click():
    print('test')

def main(page:Page):
  
    page.add(FilledButton(text="Filled button",on_click=btn_click()))

    

flet.app(target=main)

This is simple button test program. When I run it with 'python button.py', it is print the 'test'. Expected behavior is when I click the button it will print. What can be the problem?

System: pop_os

[engamir1]

can u remove () in onclick

[FeodorFitsner]

it definitely should be on_click=btn_click, without ().