Question about Tkinter windows

[Manuel Malo de Molina]

Hi everyone, this is the first time I use Python. I'm working on an
application using Tkinter and I would like that the windows could only be
opened once, is there any option to get that?

I don't know if I've explained myself: what I want is that if the user
clicks on "Options", for example, and he doesn't close the options window,
even if he clicks again on the same button the window doesn't open again.

Oh, I forgot, the windows are toplevel.
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