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

[Alan Gauld]

On 28/04/2024 16:14, carrfamily at mindspring.com wrote:
> 
> I asked an AI to write a python program that would scroll through a folder
> of pictures, and to display each .jpg it finds for 15 seconds. 

You need to remember that ChatGPT and its friends are very good at
stitching stuff from the web together in such a way that it looks
like it was done by a human. But that's all. They make no promises
about the stuff being accurate or correct in any meaningful sense.

And as you may have discovered they are extremely poor at debugging.

> import os
> import time
> import tkinter as tk
> from PIL import Image, ImageTk
> 
> folder_path = "c:/Users/Tim Carr/Pictures/_Parents"
> 
> def display_images(folder_path):
> 
>     # Create a Tkinter window
>     window = tk.Tk()
>     window.title("Image Viewer")
> 
>     # Get a list of all .jpg files in the folder
>     image_files = [f for f in os.listdir(folder_path) if f.endswith(".jpg")]
> 
>     # Display each image for 15 seconds
>     for image_file in image_files:
>         image_path = os.path.join(folder_path, image_file)
>         image = Image.open(image_path)
>         photo = ImageTk.PhotoImage(image)
> 
>         # Create a label to display the image
>         label = tk.Label(window, image=photo)
>         label.pack()
> 
>         # Display the image for 15 seconds
>         window.after(15000, label.destroy)
> 
>         window.mainloop()

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

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

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

    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'] = image_path

       # 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))
       index += 1
    else:  # we're finished
        window.quit()


# Create a Tkinter window
window = tk.Tk()
window.title("Image Viewer")
caption = tk.Label(window, text=image_files[-1].lower())
caption.pack()

theImage = Image.open(os.path.join(folder_path,image_files[-1]))
thePhoto = ImageTk.PhotoImage(theImage)
thePicture = tk.Label(window, image = thePhoto)
thePicture.pack()

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