[Tutor] My first program doesn't seem to do anything -- followup

[Alan Gauld]

On 29/04/2024 00:37, Alan Gauld via Tutor wrote:

> Here is an almost minimal version that works. I did add a couple of
> extras for usability and debugging's sake.

Oops sorry, That was an earlier debugging version.
Here is the finished version:

################
import os
import time
import tkinter as tk
from PIL import Image, ImageTk

# Get a list of all .jpg files in the folder
folder_path = "c:/Users/Tim Carr/Pictures/_Parents"
image_files = [f for f in os.listdir(folder_path)
                 if f.endswith((".jpg",".jpeg",".JPG",".JPEG"))]
index = 0
thePhoto = thePicture = None

def show_image(interval=3000):
    global index, thePhoto, thePicture

    index += 1
    thePicture.destroy()
    del(thePhoto)

    # Display next image for 3 seconds
    if index < len(image_files):
       file_name = image_files[index]
       image_path = os.path.join(folder_path, file_name)
       caption['text'] = file_name

       # create and display a new image
       newImage = Image.open(image_path)
       thePhoto = ImageTk.PhotoImage(newImage)
       thePicture = tk.Label(window, image = thePhoto,
                             width=newImage.width)
       window['width'] = 500
       thePicture.pack()

       # get ready for the next update event
       window.after(interval, lambda t=interval: show_image(t))
    else:  # we're finished
        window.quit()


# Create a Tkinter window
window = tk.Tk()
window.title("Image Viewer")
caption = tk.Label(window, text=image_files[0])
caption.pack()

# show the first image
theImage = Image.open(os.path.join(folder_path,image_files[0]))
thePhoto = ImageTk.PhotoImage(theImage)
thePicture = tk.Label(window, image = thePhoto)
thePicture.pack()

#start the slide show
show_image()
window.mainloop()


-- 
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.amazon.com/author/alan_gauld
Follow my photo-blog on Flickr at:
http://www.flickr.com/photos/alangauldphotos