“Fire and forget” python async/await

Question

Sometimes there is some non-critical asynchronous operation that needs to happen but I don\'t want to wait for it to complete. In Tornado\'s coroutine implementation you ca

Answer 1

Thank you Sergey for the succint answer. Here is the decorated version of the same.

import asyncio
import time

def fire_and_forget(f):
    def wrapped(*args, **kwargs):
        return asyncio.get_event_loop().run_in_executor(None, f, *args, *kwargs)

    return wrapped

@fire_and_forget
def foo():
    time.sleep(1)
    print("foo() completed")

print("Hello")
foo()
print("I didn't wait for foo()")

Produces

>>> Hello
>>> foo() started
>>> I didn't wait for foo()
>>> foo() completed

Note: Check my other answer which does the same using plain threads.