(doc) Mention requiring closing Reddit http connection

[Andrew-Chen-Wang]

I noticed the Reddit instance has an __aexit__ method that should auto close, but it's no where mentioned in the docs.

You'll get an error without explicitly closing the connection if you were to follow the get started docs

The docs in general are not really up to date either. The tutorials are also a bit outdated:

Unclosed client session
client_session: <aiohttp.client.ClientSession object at 0x105e36900>
Unclosed connector
connections: ['deque([(<aiohttp.client_proto.ResponseHandler object at 0x105e98d70>, 436028.214513125)])']
connector: <aiohttp.connector.TCPConnector object at 0x105e36a50>
Exception ignored in: <function _DeleteDummyThreadOnDel.__del__ at 0x100d794e0>
Traceback (most recent call last):
  File "/Users/andrew/.local/share/mise/installs/python/3.13.3/lib/python3.13/threading.py", line 1383, in __del__
TypeError: 'NoneType' object does not support the context manager protocol

Usage of __del__ for auto closing in async code bases

There is some kind of class in this lib that's setting __del__ and calling close() that should be deleted from the code base.

Even adding .close() shows

Exception ignored in: <function _DeleteDummyThreadOnDel.__del__ at 0x1006b54e0>
Traceback (most recent call last):
  File "/Users/andrew/.local/share/mise/installs/python/3.13.3/lib/python3.13/threading.py", line 1383, in __del__
TypeError: 'NoneType' object does not support the context manager protocol

It's noted that trying to close the connection using __del__ doesn't work here in the redis-py thread:

https://github.com/redis/redis-py/blob/120517f88671469888a747d8e1ca1d1c2348b301/redis/asyncio/connection.py#L227

   def __del__(self, _warnings: Any = warnings):
        # For some reason, the individual streams don't get properly garbage
        # collected and therefore produce no resource warnings.  We add one
        # here, in the same style as those from the stdlib.
        if getattr(self, "_writer", None):
            _warnings.warn(
                f"unclosed Connection {self!r}", ResourceWarning, source=self
            )

            try:
                asyncio.get_running_loop()
                self._close()
            except RuntimeError:
                # No actions been taken if pool already closed.
                pass

The problem ends up being the event loop is already closed at the end of the program sometimes (sometimes it's still open; it's a non-zero chance essentially). redis/redis-py#2999

[LilSpazJoekp]

Could you add using Reddit as an asynchronous context manager? I think there is an example in the docs for the Reddit class. If not, here's this:

async with asyncpraw.Reddit(...) as reddit:
    print(await reddit.user.me()