How can I use threading in Python?

Question

I am trying to understand threading in Python. I\'ve looked at the documentation and examples, but quite frankly, many examples are overly sophisticated and I\'m having trou

Answer 1

Most documentation and tutorials use Python's Threading and Queue module, and they could seem overwhelming for beginners.

Perhaps consider the concurrent.futures.ThreadPoolExecutor module of Python 3.

Combined with with clause and list comprehension it could be a real charm.

from concurrent.futures import ThreadPoolExecutor, as_completed

def get_url(url):
    # Your actual program here. Using threading.Lock() if necessary
    return ""

# List of URLs to fetch
urls = ["url1", "url2"]

with ThreadPoolExecutor(max_workers = 5) as executor:

    # Create threads
    futures = {executor.submit(get_url, url) for url in urls}

    # as_completed() gives you the threads once finished
    for f in as_completed(futures):
        # Get the results
        rs = f.result()