`TextField.value`'s type hint

Description

TextField.value can take both a str and a number. But its type hint in textfield.py is Optional[str] = None(either str or None) The type hint should be updated, if you think this behavior is normal.

Code example to reproduce the issue:

import flet as ft

def main(page: ft.Page):

    tb1 = ft.TextField(value=2500)
    tb2 = ft.TextField(value="2500")

    page.add(tb1, tb2)

ft.app(target=main)

[FeodorFitsner]

It shows error which is correct. It’s supposed to accept strings only.

I could add beartype decorator to enforce strings at runtime. Would that work?

[iron3oxide]

Why is value an Optional? I just tried out the counter example from the docs and pyright complained that the TextField value that is manipulated in the callback functions can be None.

It of course isn’t, because it gets set when the TextField is created, but is it not more intuitive to say that a TextField always has a value and that its default value is an empty string?

Sorry if this is obvious, I am not familiar with the code yet.

EDIT: I just read some of the code and noticed that an empty string is already returned as the default value using self._get_attr(). Shouldn’t the method be typed as returning a str then?