AttributeError: 'Server' object has no attribute 'task' about micropython-async HOT 5 CLOSED

@dpgeorge Sure. While I was debugging this yesterday I came up with a fix as well, so I have created a PR: micropython/micropython#7365.

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Given that microdot claims to support MicroPython, perhaps you'd be better off raising an issue there. It's not a package I've used. Is it possible that they haven't yet tested against the new uasyncio?

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@peterhinch Yeah, we've been discussing this issue with @dubaleeiro earlier today and it was my theory that this was a bug in uasyncio.

I just spent some time debugging it and found it to be a race condition in the server creation code for uasyncio. You can't basically call server.wait_closed() too soon after calling create_server(). Sometimes you may get lucky and everything works, other times, wait_closed() tries to access attributes of the server object that haven't been created yet.

I have now added a workaround on my side. Sorry for the trouble!

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If you have found a bug in uasyncio please create a simple test case and raise an issue against it on GitHub MicroPython where @dpgeorge will doubtless address it.

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You can't basically call server.wait_closed() too soon after calling create_server(). Sometimes you may get lucky and everything works, other times, wait_closed() tries to access attributes of the server object that haven't been created yet.

That does sound like a bug in uasyncio, which should probably be fixed.

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