Python - Single vs Multithreaded download using threading and gevent

concurrent_download.py

import logging
import threading

import gevent
import gevent.monkey
import requests

gevent.monkey.patch_socket()

logging.basicConfig(
    format='%(asctime)s - %(levelname)-8s - [%(threadName)-10s-%(thread)5d] - %(message)s',
    level=logging.DEBUG)
logger = logging.getLogger(__name__)
urls = ['https://www.python.org/',
        'https://realpython.com/',
        'http://www.tutorialspoint.com/python/']
proxies = {}


def download_via_thread(url):
    return threading.Thread(target=requests.get,
                            kwargs={'url': url, 'proxies': proxies})


def download_via_gevent(url):
    logger.info(f'Download {url} via gevent')
    requests.get(url, proxies=proxies)
    logger.info(f'Download {url} via gevent completed')


def multi_threaded_download():
    logger.info(f'Starting download via multi-thread')
    threads = [download_via_thread(url) for url in urls]
    for th in threads:
        th.start()  
        logger.info(f'Downloading using {th.name}')
    [th.join() for th in threads]
    logger.info(f'Download via multi-thread completed')


def single_threaded_download():
    greenlets = [gevent.spawn(download_via_gevent, url) for url in urls]
    gevent.joinall(greenlets)


logger.debug('*** thread ***')
multi_threaded_download()
logger.debug('*** gevent ***')
single_threaded_download()