DeprecationWarning: "@coroutine" decorator is deprecated

[ylassoued]

Module cached_property.py, function wrapper, declared in line 42, uses decorator @asyncio.coroutine.
It seems that the asyncio @coroutine decorator is deprecated since Python 3.8.
Please use async def instead.
Source code should be modified to look like:

    def _wrap_in_coroutine(self, obj):
        @wraps(obj)
        async def wrapper():
            future = asyncio.ensure_future(self.func(obj))
            obj.__dict__[self.func.__name__] = future
            return future

        return wrapper()

[encukou]

See #267

[ylassoued]

Thank you @encukou! But does this mean that the issue is now resolved in cached_property.py?

[encukou]

No, it would need to be merged & released.