How to update values in tkinter

import tkinter as tk

win = tk.Tk()
max_amount = 0
label1 = None #just so it is defined

def fun():
    global max_amount, label1
    max_amount +=100
    label1.configure(text='Balance :$' + str(max_amount))

btn = tk.Button(win,text = 'Change', command = fun)
btn.grid()
t1 =str(max_amount)
label1 = tk.Label(win,text = 'Balance :$' + t1)
label1.grid()

win.mainloop()

Source: stackoverflow.com

Similar codes

4 votes168 views3 answers
No module named 'xgboost'
Python
0 vote191 views1 answer
Limit characters in django template
Python
0 vote211 views1 answer
Flask_uploads.exceptions.UploadNotAllowed
Python Flask
8 votes162 views1 answer
Remove strings from a list python if they're short
Python
1 vote191 views1 answer
Python get methods of object
Python
0 vote189 views1 answer
Change size of image and fir it into numpy array opencv
Python
0 vote188 views1 answer
Bot wait_for discord py
Python
13 votes177 views6 answers
Python if elif else
Python
9 votes212 views3 answers
Find python path windows
Python
11 votes183 views2 answers
Python get full path
Python