await_test

await_test.py

# -*- coding: utf-8 -*-
# 2021/9/8
# create by: snower

import asyncio
from asyncio import Future

callback_list = []

def func(callback):
    callback_list.append(callback)

def func_await():
    future = Future()
    def on_finish():
        future.set_result(None)
    func(on_finish)
    return future

async def test():
    print(1)
    await func_await()
    print(2)

async def run():
    await test()
    await test()

def run_loop():
    while len(callback_list) != 0:
        callback = callback_list.pop(0)
        callback()
    loop.call_later(0.1, run_loop)

loop = asyncio.get_event_loop()
loop.call_soon(run_loop)
loop.run_until_complete(run())