lesson03_gather.py

# SuperFastPython.com
# example of gather for many coroutines in a list
import asyncio

# coroutine used for a task
async def task_coro(value):
 # report a message
 print(f'>task {value} executing')
 # sleep for a moment
 await asyncio.sleep(1)

# coroutine used for the entry point
async def main():
 # report a message
 print('main starting')
 # create many coroutines
 coros = [task_coro(i) for i in range(10)]
 # run the tasks
 await asyncio.gather(*coros)
 # report a message
 print('main done')

# start the asyncio program
asyncio.run(main())