blocking_function.py

"""Needs Python 3.7"""

import asyncio
import time

def blocking():
    print("\tStarting sleeping")
    time.sleep(5)
    print("\tSleeping completed")
    return "Hello World"

async def hello_world():
    print("Waiting for blocking")
    loop = asyncio.get_running_loop()
    future = loop.run_in_executor(None, blocking)
    print("I don't want to wait")
    result = await future
    print(result)

asyncio.run(hello_world())