Minimalist parallel image downloading with python. Please consult TOS/robots.txt prior to use.

batchImageDownloader.py

import concurrent.futures
import urllib.request
import uuid
import requests

def getURLs(filename : str) -> list:
    with open(filename, 'r') as f:
        urls = f.read().splitlines()
    return urls

URLS = getURLs("image_urls.txt")
dir = "img/b01_"  # folder/batchPrefix

# Retrieve a single url and download its image
def load_url(url):
    response = requests.get(url)
    # ./dir/BatchPrefix_uuid.jpg
    file = open(dir+uuid.uuid4().hex[:7]+".jpg", "wb")
    file.write(response.content)
    file.close()

with concurrent.futures.ThreadPoolExecutor(max_workers=None) as executor:
    future_to_url = {executor.submit(load_url, url): url for url in URLS}
    concurrent.futures.as_completed(future_to_url)