How do I pass an async function to a thread target in Python?

问题

I have the following code:

async some_callback(args):
    await some_function()

and I need to give it to a Thread as a target:

_thread = threading.Thread(target=some_callback, args=("some text"))
_thread.start()

The issue is that I get the error that "some_callback" is never awaited. Any ideas how can I solve this problem?

回答1:

You can do it by adding function between to execute async:

async def some_callback(args):
    await some_function()

def between_callback(args):
    loop = asyncio.new_event_loop()
    asyncio.set_event_loop(loop)

    loop.run_until_complete(some_callback(args))
    loop.close()

_thread = threading.Thread(target=between_callback, args=("some text"))
_thread.start()

来源：https://stackoverflow.com/questions/59645272/how-do-i-pass-an-async-function-to-a-thread-target-in-python