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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 module from tkinter import * from tkinter.ttk import * # creating tkinter window root = Tk() # Progress bar widget progress = Progressbar(root, orient = HORIZONTAL, length = 100, mode = 'determinate') # Function responsible for the updation # of the progress bar value def 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 bar Button(root, text = 'Start', command = bar).pack(pady = 10) # infinite loop mainloop() |
Output:
Code #2: In indeterminate mode
# importing tkinter module from tkinter import * from tkinter.ttk import * # creating tkinter window root = Tk() # Progress bar widget progress = Progressbar(root, orient = HORIZONTAL, length = 100, mode = 'indeterminate') # Function responsible for the updation # of the progress bar value def 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 bar Button(root, text = 'Start', command = bar).pack(pady = 10) # infinite loop mainloop() |
Output:
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