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Showing content from https://www.geeksforgeeks.org/progressbar-widget-in-tkinter-python/ below:

Progressbar widget in Tkinter | Python

Last Updated : 01 May, 2019

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

determinate

mode

Python3 1==


 # 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:

indeterminate

mode

Python3 1==


 # 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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