How to start tkinter.Checkbutton with button checked?

Question

Question as above, not much more I can say

tab2.content.append(
            Checkbutton(
                tab2,
                text="Fullscreen",
                command=lambda: settings.update({'Fullscreen': not settings['Fullscreen']})
                ).grid(row=1))

score 1 · Answer 1 · answered Oct 30 '20 at 16:01

1

Your code has issue that None will be appended to tab2.content because you append the result of grid().

Use:

cb = Checkbutton(tab2, text="Fullscreen", 
                 command=lambda: settings.update({'Fullscreen': not settings['Fullscreen']}))
cb.grid(row=1)
cb.select() # make it checked
tab2.content.append(cb)

answered Oct 30 '20 at 16:01

acw1668

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That wasn’t my original issue, but thank you, that does fix it and whatever future issues would have like that. – artificial nonintelligence Oct 30 '20 at 17:23
There is no `select` method of Checkbutton. What do you mean? – artificial nonintelligence Oct 30 '20 at 17:55
`tkinter.Checkbutton` has `select()` function. Do you mean `ttk.Checkbutton`? – acw1668 Oct 30 '20 at 22:58
What is the difference? – artificial nonintelligence Oct 31 '20 at 22:01
`ttk` widgets use theme. – acw1668 Nov 01 '20 at 01:26

How to start tkinter.Checkbutton with button checked?

1 Answers1