Advanced Python Programming

Spawning multiple threads

To apply concurrency, we simply use the threading module that we have been discussing to create separate threads to handle different web requests. Let's take a look at the Chapter12/example3.py file, as shown in the following code:

# Chapter12/example3.pyimport threadingimport requestsimport timedef ping(url):    res = requests.get(url)    print(f'{url}: {res.text}')urls = [    'http://httpstat.us/200',    'http://httpstat.us/400',    'http://httpstat.us/404',    'http://httpstat.us/408',    'http://httpstat.us/500',    'http://httpstat.us/524']start = time.time()for url in urls:    ping(url)print(f'Sequential: {time.time() - start : .2f} seconds')print()start = time.time()threads = []for url in urls: thread = threading.Thread(target=ping, ...