Update nest-asyncio/README.md

nest-asyncio/README.md

@@ -1,19 +1,24 @@
 ```python
-import asyncio
+def sync(coro):
-def _run_once(loop):
+    import asyncio, functools
+    if not asyncio.iscoroutinefunction(coro): return coro
+    @functools.wraps(coro)
+    def wrapper(*args, **kwargs):
+        loop, future = asyncio.get_event_loop(), asyncio.ensure_future(coro(*args, **kwargs))
+        while not future.done(): 
             loop._process_events(loop._selector.select(0))
             if (ready := loop._ready) and (handle := ready.popleft())._cancelled is False:
                 task = (tasks := asyncio.tasks._current_tasks).pop(loop, None)
                 handle._run(); tasks[loop] = task
-(loop := asyncio.get_event_loop()).__class__._run_once = _run_once
+        return future.result()
-asyncio.run = loop.run_until_complete; loop.__class__._check_running = lambda _: 0
+    return wrapper
 
+@sync
 async def hello():
-    print('hello')
+    @sync
-    async def world(): 
+    async def world(): print('hello')
-        print('world')
+    world() or print('world')
-    asyncio.run(world())
+hello()
-asyncio.run(hello())
 """
 hello
 world