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

0 vote257 views1 answer
Pandas change order of columns in multiindex
Python
0 vote262 views1 answer
Django model manager user
Python Django
2 votes253 views3 answers
How to copy items from 1 list to another in python
Python
0 vote252 views1 answer
Python find if strings have common substring
Python
0 vote263 views4 answers
Command to install python3.6 on mac os
Python
79 votes258 views6 answers
Read csv python
Python
-1 vote263 views1 answer
Email validation using django
Python
14 votes218 views6 answers
Ruby print
Python
0 vote266 views1 answer
Pandas to csv encoding
Python
-1 vote268 views1 answer
Mixed Fractions in python
Python