The issue is that the ecosystem as a whole tends to follow the tip of the version chain. This means that any human-oriented Python stuff (e.g. documentation/tu

The issue is that the ecosystem as a whole tends to follow the tip of the version chain. This means that any human-oriented Python stuff (e.g. documentation/tutorials/code-review/etc...) requires you stay up to date with the language changes. Asyncio was the worst culprit, as it essentially introduces an inner-platform with its own dataflow semantics, but at least there the upsides were large and tangible.