TypeError: int() argument must be a string, a bytes-like object or a number, not 'NoneType'

Dung Do Tien Jun 14 2021 334

I'm begining with some code as below:

from tkinter import *  

top = Tk()  

def spam():
    for i in range(int(a1)):
        print(i)

sbmitbtn = Button(top, text = "Login",activebackground = "Black", activeforeground = "white",command=spam).place(x = 40, y = 180)  

a1 = Entry(top).place(x = 90, y = 60)

But when I run code, I got an error "TypeError: int() argument must be a string, a bytes-like object or a number, not 'NoneType'"

How can I fix it?

Have 1 answer(s) found.
  • N

    Nguyen Quoc Viet Jun 14 2021

    You should use get() method to get the value of the Entry:

    for i in range(int(a1.get())):
        print(i)

    And replace:

    a1 = Entry(top).place(x = 90, y = 60)  

    To

    a1 = Entry(top)
a1.place(x = 80, y = 50) 

    I hope it works for you.

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