How can I wrap a synchronous function in an async coroutine?

Question

I\'m using aiohttp to build an API server that sends TCP requests off to a seperate server. The module that sends the TCP requests is synchronous and a black box for my purposes

Answer 1

Maybe someone will need my solution to this problem. I wrote my own library to solve this, which allows you to make any function asynchronous using a decorator.

To install the library, run this command:

$ pip install awaits

To make any of your functions asynchronous, just add the @awaitable decorator to it, like this:

import time
import asyncio
from awaits.awaitable import awaitable

@awaitable
def sum(a, b):
  # heavy load simulation
  time.sleep(10)
  return a + b

Now you can make sure that your function is really asynchronous coroutine:

print(asyncio.run(sum(2, 2)))

"Under the hood" your function will be executed in the thread pool. This thread pool will not be recreated every time your function is called. A thread pool is created once and accepts new tasks via a queue. This will make your program run faster than using other solutions, because the creation of additional threads is an additional overhead.