Await marks a point where a coroutine can pause, allowing asyncio’s event loop to switch to another task. Any function that uses await must be declared async. section 7.5.1
Listing 7.17 asyncio example
import asyncio
import time
async def func1():
print("Start func1")
await asyncio.sleep(5)
print("End func1")
return "func1 complete"
async def func2():
print("Start func2")
await asyncio.sleep(3)
print("End func2")
return "func2 complete"
async def main():
start_time = time.time()
co_routines = asyncio.gather(func1(), func2())
a, b = await co_routines
print(a, b)
end_time = time.time()
print("time", end_time-start_time)
asyncio.run(main())
See await used with asyncio.gather to run two coroutines concurrently and collect their results. section 7.5.1
