Utility classes for AnyIO
Project description
anyioutils
anyioutils.Future
behaves the same as asyncio.Future
except that:
- you cannot directly await an
anyioutils.Future
object, but through its.wait()
method (unlike anasyncio.Future
, but like anasyncio.Event
). - cancelling an
anyioutils.Future
doesn't raise ananyio.get_cancelled_exc_class()
, but ananyioutils.CancelledError
.
from anyioutils import CancelledError, Future
from anyio import create_task_group, run
async def set_result(future):
future.set_result("done")
async def cancel(future):
future.cancel()
async def main():
async with create_task_group() as tg:
future0 = Future()
tg.start_soon(set_result, future0)
assert await future0.wait() == "done"
future1 = Future()
tg.start_soon(cancel, future1)
try:
await future1.wait()
except CancelledError:
assert future1.cancelled()
run(main)
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