with ThreadPoolExecutor(max_workers=3) as executor: executor.map(download_file, urls) Most examples require requests :

Run with:

Here’s a general guide for a main.py download — typically meaning a Python script ( main.py ) that handles downloading files from the internet. Simple URL downloader # main.py import requests def download_file(url, filename): response = requests.get(url, stream=True) response.raise_for_status()

python main.py https://example.com/file.pdf -o myfile.pdf # main.py import requests from concurrent.futures import ThreadPoolExecutor import os def download_file(url, folder="downloads"): os.makedirs(folder, exist_ok=True) filename = os.path.join(folder, url.split('/')[-1])