The purpose of this widget is to reassure the user that something is happening. It can operate in one of two modes –
In determinate mode, the widget shows an indicator that moves from beginning to end under program control.
In indeterminate mode, the widget is animated so the user will believe that something is in progress. In this mode, the indicator bounces back and forth between the ends of the widget.
Syntax:
widget_object = Progressbar(parent, **options)
Code #1 In determinate mode
# importing tkinter modulefrom tkinter import * from tkinter.ttk import * # creating tkinter windowroot = Tk() # Progress bar widgetprogress = Progressbar(root, orient = HORIZONTAL, length = 100, mode = 'determinate') # Function responsible for the updation# of the progress bar valuedef bar(): import time progress['value'] = 20 root.update_idletasks() time.sleep(1) progress['value'] = 40 root.update_idletasks() time.sleep(1) progress['value'] = 50 root.update_idletasks() time.sleep(1) progress['value'] = 60 root.update_idletasks() time.sleep(1) progress['value'] = 80 root.update_idletasks() time.sleep(1) progress['value'] = 100 progress.pack(pady = 10) # This button will initialize# the progress barButton(root, text = 'Start', command = bar).pack(pady = 10) # infinite loopmainloop() |
Output:
Code #2: In indeterminate mode
# importing tkinter modulefrom tkinter import * from tkinter.ttk import * # creating tkinter windowroot = Tk() # Progress bar widgetprogress = Progressbar(root, orient = HORIZONTAL, length = 100, mode = 'indeterminate') # Function responsible for the updation# of the progress bar valuedef bar(): import time progress['value'] = 20 root.update_idletasks() time.sleep(0.5) progress['value'] = 40 root.update_idletasks() time.sleep(0.5) progress['value'] = 50 root.update_idletasks() time.sleep(0.5) progress['value'] = 60 root.update_idletasks() time.sleep(0.5) progress['value'] = 80 root.update_idletasks() time.sleep(0.5) progress['value'] = 100 root.update_idletasks() time.sleep(0.5) progress['value'] = 80 root.update_idletasks() time.sleep(0.5) progress['value'] = 60 root.update_idletasks() time.sleep(0.5) progress['value'] = 50 root.update_idletasks() time.sleep(0.5) progress['value'] = 40 root.update_idletasks() time.sleep(0.5) progress['value'] = 20 root.update_idletasks() time.sleep(0.5) progress['value'] = 0 progress.pack(pady = 10) # This button will initialize# the progress barButton(root, text = 'Start', command = bar).pack(pady = 10) # infinite loopmainloop() |
Output:
