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67e51cf07c lib.AsyncRunner: Add class

Add class AsyncRunner. This is a wrapper around the ceremony needed to spawn an extra event loop in a synchronous function which wants to call an async function.

Guido van Rossum considers it bad design that such a function exists in the first place. While that may be true in the long run also for jw-pkg, at this point I'm unwilling to flag every lazyly initialized App property as async. It's not clear, yet, which will be async and which not, and I dread the churn. So I will accept this as a minimally invasive helper for now. When the API has stabilized, a design without it may be better.

Signed-off-by: Jan Lindemann <jan@janware.com>
2026-03-20 10:30:25 +01:00