Removed a leftover mention of Python 3.6

src/anyio/_backends/_asyncio.py

@@ -521,8 +521,8 @@ async def __aexit__(
  async def _run_wrapped_task(
  self, coro: Coroutine, task_status_future: asyncio.Future | None
  ) -> None:
- # This is the code path for Python 3.6 and 3.7 on which asyncio freaks out if a
- # task raises a BaseException.
+ # This is the code path for Python 3.7 on which asyncio freaks out if a task
+ # raises a BaseException.
  __traceback_hide__ = __tracebackhide__ = True # noqa: F841
  task = cast(asyncio.Task, current_task())
  try:

tests/test_from_thread.py

@@ -503,3 +503,22 @@ async def in_loop() -> None:
  await to_thread.run_sync(portal.start_task_soon, in_loop)
 
  assert not caplog.text
+
+ def test_raise_baseexception_from_task(
+ self, anyio_backend_name: str, anyio_backend_options: dict[str, Any]
+ ) -> None:
+ """
+ Test that when a task raises a BaseException, it does not trigger additional
+ exceptions when trying to close the portal.
+
+ """
+
+ async def raise_baseexception() -> None:
+ raise BaseException("fatal error")
+
+ with pytest.raises(BaseException, match="fatal error"):
+ with start_blocking_portal(
+ anyio_backend_name, anyio_backend_options
+ ) as portal:
+ with pytest.raises(BaseException, match="fatal error"):
+ portal.call(raise_baseexception)