How do I show random images from a folder on Tkinter?-CodePudding

So I have a couple of images in a folder and I want to do a little pack opener on tkinter where if I press on a button it randomly opens an Image of that folder and shows it. So I did this:

def pack():
    path ='C:\\Users\\matt\OneDrive\Images\cards'
    files = os.listdir(path)
    index = random.randrange(0, len(files))
    image = Image.open(files[index])
    image.show()

The problem is that this function doesn't want to work and it always tells me:

AttributeError: type object 'Image' has no attribute 'open'

Can someone please help me? And does someone know how to do a button out of an image? Thank you in advance.☺

CodePudding user response：

Assuming you're using Python 3, and you have a folder named card images in the same directory as your Python script, and that folder contains .png images of your playing cards, then the following should work:

import tkinter as tk


def get_random_image_path():
    from random import choice
    from pathlib import Path

    return str(choice(list(Path("card images").glob("*.png"))))


class Application(tk.Tk):

    def __init__(self, *args, **kwargs):
        tk.Tk.__init__(self, *args, **kwargs)
        self.title("Random card")
        self.geometry("171x239")
        self.resizable(width=False, height=False)

        self.image = tk.PhotoImage(file=get_random_image_path())
        self.button = tk.Button(self, image=self.image, command=self.assign_new_image)
        self.button.pack()

    def assign_new_image(self):
        self.image = tk.PhotoImage(file=get_random_image_path())
        self.button.configure(image=self.image)


def main():

    application = Application()
    application.mainloop()

    return 0


if __name__ == "__main__":
    import sys
    sys.exit(main())

Note: I just grabbed three public domain card images from Wikimedia Commons. You can download them either in .svg or .png format in different resolutions. In my case I downloaded them as .pngs with a resolution of 171x239, which is why I picked the same dimensions for the tkinter window. Since I've only downloaded three images, sometimes it appears as though clicking the button doesn't seem to do anything, which isn't the case - it's just that, with only three images to choose from, we're likely to pick the same image multiple times in a row.

CodePudding user response：

To get your example running, see a minimal solution below. For a ready Tkinter program and to avoid PIL use Paul M.'s solution.

import os
import random
from PIL import Image
  
# assuming that this dir contains only images
# otherwise test if r is an image
img_folder = r'/home/ktw/Desktop/test_img'

def pack():
    r = random.choice(os.listdir(img_folder))
    image = Image.open(os.path.join(img_folder, r))
    image.show()


if __name__=='__main__':
    pack()