Created
January 23, 2019 11:55
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Python - Single vs Multithreaded download using threading and gevent
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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() |
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