Hi, I want to ask how people feel about the following.
If you raise a subclass of CancelledError from within a task and then
call task.result(), CancelledError is raised rather than the subclass.
Here is some code to illustrate:
class MyCancelledError(CancelledError): pass
async def raise_my_cancel():
raise MyCancelledError()
task = asyncio.ensure_future(raise_my_cancel())
try:
await task
except Exception:
pass
assert task.cancelled()
# Raises CancelledError and not MyCancelledError.
task.result()
Does this seem right to people? Is there a justification for this?
If it would help for the discussion, I could provide a use case.
Thanks a lot,
--Chris
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