simple example with asyncio, that show how async function works

sample_asyncio.py

import asyncio
import time

async def sample():
    start_time = time.time()
    print('start')
    await asyncio.sleep(1)
    await asyncio.sleep(2)
    print('after 2s sleep on sample ')
    await asyncio.sleep(1)
    end_time = time.time() - start_time
    print('sample function Total Time : ',end_time)


async def sample2():
    start_time = time.time()
    await asyncio.sleep(2)
    await asyncio.sleep(3)
    print('after 3s sleep on sample2')
    await asyncio.sleep(2)
    end_time = time.time() - start_time
    print('sample2 function Total Time : ',end_time)


async def main():
    await asyncio.gather(sample(), sample2())

if __name__ == "__main__":
    s = time.perf_counter()
    asyncio.run(main())
    elapsed = time.perf_counter() - s
    print(f"{__file__} executed in {elapsed:0.2f} seconds.")
    
# output : 
# sample function Total Time :  4.015647888183594
# sample2 function Total Time :  6.015649080276489
# C:\Users\sample\test_async.py executed in 6.02 seconds.