Main.py

import random
import string
from tkinter import *
from io import BytesIO
from PIL import ImageTk, Image, UnidentifiedImageError
import os
import urllib3

os.chdir(r'D:\code\cmnoNow\random_imgur_image')  # My working dir

http = urllib3.PoolManager()

defImg = Image.open('imgur.png')  # default imgur image not found png

download_image_path = 'downloaded.png'

hdr = {
    'User-Agent': 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11',
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
    'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.3',
    'Accept-Encoding': 'none',
    'Accept-Language': 'en-US,en;q=0.8',
    'Connection': 'keep-alive',
    }


def get_random_imgur_url(length, chars):
    final = 'https://imgur.com/'
    for i in range(length):
        final += random.choice(chars)
    final += '.png'
    return final


def returnImage(imgur_url, headers=None):
    if headers is None:
        headers = hdr

    response = http.request('GET', imgur_url, headers=headers)
    if response.status == 404:
        return (False, '')

    try:
        image = Image.open(BytesIO(response.data))
        return (True, image)
    except UnidentifiedImageError:
        return (False, '')


def download_random_imgur_image(chars_length,
                                chars=string.ascii_lowercase
                                + string.ascii_uppercase
                                + string.digits + string.digits):
    length = chars_length

    imgur_url = get_random_imgur_url(length, chars)

    root.title(imgur_url)

    (success, image) = returnImage(imgur_url)

    if not success or image is None or image == defImg:  # If image is imgur.png, or it doesn't exist, get a new one
        download_random_imgur_image(chars_length)  # Recursion!
    else:
        image.save(download_image_path)


root = Tk()

img = ImageTk.PhotoImage(Image.open('temporary.png'))
tkinter_panel = Label(root, image=img)
tkinter_panel.pack(side='bottom', fill='both', expand='yes')


def reload_image(event):
    download_random_imgur_image(5)

    imgur_image = ImageTk.PhotoImage(Image.open(download_image_path))
    tkinter_panel.configure(image=imgur_image)
    tkinter_panel.image = imgur_image


def hide_image(e):
    imgur_image = img
    tkinter_panel.configure(image=imgur_image)
    tkinter_panel.image = imgur_image


root.bind('<Return>', reload_image)

root.bind('<BackSpace>', hide_image)

root.mainloop()