Andrew, I see that you've closed this issue as "fixed".

I'm a little confused by that.

If you mean that 3.10 behaviour is better than 3.9, than perhaps "not a bug / rejected / wont fix" would make more sense.

Actually I don't agree with Thomas's logic... his argument feels like consistency for its own sake.

I agree with the intention of the change for the arguments to be released (https://bugs.python.org/issue30306) but I disagree with the cryptic error.

I'm sure we could have both argument release and readable exception, e.g.:


try:
    del self.args, ...
except AttributeError:
    raise RuntimeError("anext(): asynchronous generator is already running")