noaio

Run (some) coroutine functions synchronously.

Usage

Coroutine functions can be checked for syncifiability with can_syncify. Functions that contain any await, async with, or async for expression are not syncifiable. If they are, wrap them in syncify to run them as regular synchronous functions.

from noaio import syncify, can_syncify


async def func_without_await():
    return 1


can_syncify(func_without_await) == True
syncify(func_without_await)() == 1

async def func_with_await():
    await asyncio.sleep(0)
    return 1


can_syncify(func_with_await) == False
syncify(func_with_await)  ## ValueError

How can I break it?

can_syncify checks the AST of the function you provide it. If it contains any await, async with or async for opcodes at the root level (immediately executed), it will return False.

syncify wraps the provided async function in a synchronous one that drives the coroutine to completion using .send, catching the iteration error and returning the result.

The library is typed, and expects you to use it in compliance with its type signatures.