Create a Sideshow application in Python

In this article, we will create a slideshow application i.e we can see the next image without changing it manually or by clicking. 

Modules Required:

• Tkinter: The tkinter package (“Tk interface”) is the standard Python interface to the Tk GUI toolkit.
• Pillow: The Python Imaging Library adds image processing capabilities to your Python interpreter. This library provides extensive file format support, an efficient internal representation, and fairly powerful image processing capabilities. It can be installed using the below command:

pip install Pillow

Step-by-step Approach:

• Firstly we have to import the modules.

Python3

# import required modules
import tkinter as tk
from tkinter import *
from PIL import Image
from PIL import ImageTk

• Load the images.

Python3

# adjust window
root = tk.Tk()
root.geometry("200x200")

# loading the images
img = ImageTk.PhotoImage(Image.open("photo1.png"))
img2 = ImageTk.PhotoImage(Image.open("photo2.png"))
img3 = ImageTk.PhotoImage(Image.open("photo3.png"))

l = Label()
l.pack()

• Now we have to make a function called move to make the image move(It here means that one image appears and after a movement, it disappears.

Python3

# using recursion to slide to next image
x = 1

# function to change to next image
def move():
    global x
    if x == 4:
        x = 1
    if x == 1:
        l.config(image=img)
    elif x == 2:
        l.config(image=img2)
    elif x == 3:
        l.config(image=img3)
    x = x+1
    root.after(2000, move)

# calling the function
move()

• Now we have to just call the mainloop function of tkinter to end the task.

Python3

root.mainloop()

• Whole Code=

Python3

# import required modules
import tkinter as tk
from tkinter import *
from PIL import Image
from PIL import ImageTk



# adjust window
root=tk.Tk()
root.geometry("200x200")

# loading the images
img=ImageTk.PhotoImage(Image.open("photo1.png"))
img2=ImageTk.PhotoImage(Image.open("photo2.png"))
img3=ImageTk.PhotoImage(Image.open("photo3.png"))

l=Label()
l.pack()



# using recursion to slide to next image
x = 1

# function to change to next image
def move():
    global x
    if x == 4:
        x = 1
    if x == 1:
        l.config(image=img)
    elif x == 2:
        l.config(image=img2)
    elif x == 3:
        l.config(image=img3)
    x = x+1
    root.after(2000, move)

# calling the function
move()



root.mainloop()

Output: