[Question] move_on_top() in tutorial doesn't work as expected

[di3tc0ke]

Question

move_on_top() introduced in https://flet.dev/docs/tutorials/python-solitaire#step-3-adding-a-second-card doesn't work.

I simply copy and paste the whole code in the tutorial page, but the green card is still under the yellow card when dragging.

How can fix this issue?

P.S. I saw someone was on the same boat: https://stackoverflow.com/questions/78763325/how-can-i-fix-control-must-be-added-to-the-page-first-error-while-using-gestu

Code sample

def move_on_top(card, controls):
    """Moves draggable card to the top of the stack"""
    controls.remove(card)
    controls.append(card)
    page.update()

and I tried the following too

def move_on_top(card, controls):
    controls.insert(0, card)
    page.update()

Error message

No response

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• I have searched for answers to my question both in the issues and in previous discussions.