I find Twisted less accessible and more opaque than async. It's also more "bolted on" in that it's an entirely separate library/framework outside the standard l

I find Twisted less accessible and more opaque than async. It's also more "bolted on" in that it's an entirely separate library/framework outside the standard lib. Async might technically be bolted on, but no worse than async in most languages which weren't designed de novo for async (eg go/elixir).