[Tkinter] listbox constantly being added to the list.

[speedev]

Hi,

   

I made a simple left-justified menu with buttons. Assign functions as commands to buttons. That is, the menu contents are within the functions.

Now there is a problem.

I am pulling the data in this list via MongoDB. The items in this list are the data in the MongoDB collection.

   

When I click on the "Sınıf Yönetimi" button from the left-justified menu with the buttons, the sinifYonetimi function works.

But as I run the SinifYonetimi function through the menu, it constantly re-inserts the items in MongoDB.

   

As you can see in the picture above, the data has been inserted 3 times. This is because I pressed the "Sınıf Yönetimi" button from the left menu 3 times. Upon pressing it, the sinifYonetimi function ran 3 times and inserted 3 times.


It's a bug and I haven't been able to fix it. How can I solve this problem?

Code:

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def sinifYonetimi():     sinifyonetimiaciklama = Label(fg="white", bg="#202020")       veriyicek = siniflar.find().sort("sinif")     i = 1       for x in veriyicek:         print(x["sinif"])           liste.insert(i, x["sinif"])     i = i + 1       liste.configure(width=50)     sinifeklebuton.grid(column=3, row=5, sticky=E)# Buton     liste.grid(column=2, columnspan=3)     sinifadiyazma.grid(column=3, row=5, sticky=NW)# Entry     sinifadiyazma.configure(width=30)       silbuton.grid(column=2, columnspan=3)     silbuton.configure(width=10, height=1)     islemsec.grid_remove()   menubuton2 = Button(text="Sınıf Yönetimi", fg="white", bg="#282528", height=4, command=sinifYonetimi)

How can I solve the problem? I don't want it to be re-inserted all the time. It is constantly re-inserting as I press the button from the menu. How can I prevent it from re-inserting? Thanks in advance.

[Yoriz]

I don't really understand what you want to happen, if you press it 3 times the event handler will be called 3 times.
Do you want to only be able to press it once and then are no longer able to, if so you can disable the button with

1	button.config(state='disabled')

[speedev]

I want the sinifYonetimi function to run only once, no matter how many times I press the button.

[Yoriz]

add this to the start of the event handler function and the button won't be able to be pressed anymore.

1 2	def sinifYonetimi():     menubuton2.config(state='disabled')

Please see Namespace flooding with * imports

[speedev]

The method is really clever and really beautiful. Thank you.