Python: gevent - synchronous/asynchronous execution

gevent_asynchronous_demo.py

import logging
import time

import gevent

logging.basicConfig(
    format='%(asctime)s - %(levelname)10s - [%(threadName)s-%(thread)d] - [%(processName)s-%(process)s]- %(message)s',
    level=logging.DEBUG)
logger = logging.getLogger(__name__)


def synchronous_task(taskid):
    logger.info(f'Synchronous task {taskid} started ')
    time.sleep(0.2)
    logger.info(f'Synchronous task {taskid} completed')


def asynchronous_task(taskid):
    logger.info(f'Synchronous task {taskid} started')
    gevent.sleep(3)
    logger.info(f'Synchronous task {taskid} completed')


def synchronous():
    [synchronous_task(i) for i in range(5)]


def asynchronous():
    threads = [gevent.spawn(asynchronous_task, i) for i in range(5)]
    gevent.joinall(threads)


logger.debug('*** Synchronous ***')
synchronous()
logger.debug('*** Asynchronous ***')
asynchronous()