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

Eventually I found an answer in this thread. The method I was looking for is run_in_executor. This allows a synchronous function to be run asynchronously without blocking an event loop.

In the sleep example I posted above, it might look like this:

import asyncio
from time import sleep

async def sleep_async(loop, delay):
    # None uses the default executor (ThreadPoolExecutor)
    await loop.run_in_executor(None, sleep, delay)
    return 'I slept asynchronously'

Also see the following answer -> How do we call a normal function where a coroutine is expected?