Python3 tkinter -question about button position

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Hello.I 'am beginner with tkinter and I build a simple calculator app and I have a problem with position of 3 buttons (+ , - , =).
I have 2 photos to see my problem & understand.
1st Photo[^]

2nd photo[^]

2nd photo is the original size of window.
So, I want to put (- , + and =) under button 2 and 3.
How can I do it?

What I have tried:

Python

from tkinter import *

root = Tk()
root.geometry("403x440")
root.title("Calculator")
window = Entry(root , width = 40).grid(row = 0 , column = 0, padx = 35 , columnspan = 3)   

button_7 = Button(root , text = "7"  , padx = 60, pady = 40).grid(row = 1 , column = 0)
button_8 = Button(root , text = "8"  , padx = 60, pady = 40).grid(row = 1 , column = 1)
button_9 = Button(root , text = "9"  , padx = 60, pady = 40).grid(row = 1 , column = 2)

button_4 = Button(root , text = "4"  , padx = 60, pady = 40).grid(row = 2 , column = 0)
button_5 = Button(root , text = "5"  , padx = 60, pady = 40).grid(row = 2 , column = 1)
button_6 = Button(root , text = "6"  , padx = 60, pady = 40).grid(row = 2 , column = 2)

button_1 = Button(root , text = "1"  , padx = 60, pady = 40).grid(row = 3 , column = 0)
button_2 = Button(root , text = "2"  , padx = 60, pady = 40).grid(row = 3 , column = 1)
button_3 = Button(root , text = "3"  , padx = 60, pady = 40).grid(row = 3 , column = 2)

button_0 = Button(root , text = "0"  , padx = 60, pady = 40).grid(row = 4 , column = 0)

button_minus = Button(root , text = "-"  , padx = 40, pady = 40).grid(row = 4 , column = 1)
button_add = Button(root , text = "+"  , padx = 40, pady = 40).grid(row = 4 , column = 2)
button_equal = Button(root , text = "="  , padx = 40, pady = 40).grid(row = 4 , column = 3)

root.mainloop()

Thanks.

Posted 28-Jan-21 11:49am

Nick_is_asking

Updated 31-Jan-21 6:23am

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Comments

Richard MacCutchan 29-Jan-21 3:55am

I think it is because you have declared the window as having only three columns (columnspan = 3). So the equals button is moved outside of the allowed columns. It may be possible by adding the last three to a groupbox and then putting that in the last space, with a columnspan value of 2.

You will need to try a few things, but take a look at Python - Tkinter grid() Method - Tutorialspoint[^] for assistance.

Nick_is_asking 29-Jan-21 5:09am

I can't figure it out.I tried a lot.Can anyone help me?

Nick_is_asking 29-Jan-21 14:41pm

Anyone?

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Member 15060986 · Answer 1 · 2021-01-31T06:23:00

I modified your code. I can propose this solution for your problem:
root = Tk()
root.geometry("403x440")
root.title("Calculator")
window = Entry(root, width = 40).grid(padx = 35, columnspan = 3)

button_7 = Button(root, text = "7", pady = 40).grid(row = 1, column = 0, columnspan = 2, sticky='nesw')
button_8 = Button(root, text = "8").grid(row = 1, column = 2, columnspan = 2, sticky='nesw')
button_9 = Button(root, text = "9").grid(row = 1, column = 4, columnspan = 2, sticky='nesw')

button_4 = Button(root, text = "4", pady = 40).grid(row = 2, column = 0, columnspan = 2, sticky='nesw')
button_5 = Button(root, text = "5").grid(row = 2, column = 2, columnspan = 2, sticky='nesw')
button_6 = Button(root, text = "6").grid(row = 2, column = 4, columnspan = 2, sticky='nesw')

button_1 = Button(root, text = "1", pady = 40).grid(row = 3, column = 0, columnspan = 2, sticky='nesw')
button_2 = Button(root, text = "2").grid(row = 3, column = 2, columnspan = 2, sticky='nesw')
button_3 = Button(root, text = "3").grid(row = 3, column = 4, columnspan = 2, sticky='nesw')

button_0 = Button(root, text = "0").grid(row = 4, column = 0, columnspan = 3, sticky='nesw')

button_minus = Button(root, text = "-", padx = 40, pady = 40).grid(row = 4, column = 3)
button_add = Button(root, text = "+", padx = 40, pady = 40).grid(row = 4, column = 4)
button_equal = Button(root, text = "=", padx = 40, pady = 40).grid(row = 4, column = 5)

root.mainloop()

I reduce your button to half of its original size and make it occuppy 2 colunm instead of one. The sticky make your button occupy all the space available in the specified colunm.