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Fix error when a shared event loop is unset #1180

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Merged
merged 2 commits into from
Sep 12, 2025
Merged

Fix error when a shared event loop is unset #1180

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8f49404
test: Added tests which assert that the event loop is reinstated if u…
tjkuson Aug 9, 2025
f5739a6
docs: Add changelog entry for Pyright compatibility.
tjkuson Sep 8, 2025
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1 change: 1 addition & 0 deletions changelog.d/1172.added.rst
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@@ -0,0 +1 @@
Compatibility with the `Pyright` type checker
1 change: 1 addition & 0 deletions changelog.d/1177.fixed.rst
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``RuntimeError: There is no current event loop in thread 'MainThread'`` when any test unsets the event loop (such as when using ``asyncio.run`` and ``asyncio.Runner``).
9 changes: 4 additions & 5 deletions pytest_asyncio/plugin.py
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Expand Up @@ -311,7 +311,7 @@ def _asyncgen_fixture_wrapper(
gen_obj = fixture_function(*args, **kwargs)

async def setup():
res = await gen_obj.__anext__() # type: ignore[union-attr]
res = await gen_obj.__anext__()
return res

context = contextvars.copy_context()
Expand All @@ -324,7 +324,7 @@ def finalizer() -> None:

async def async_finalizer() -> None:
try:
await gen_obj.__anext__() # type: ignore[union-attr]
await gen_obj.__anext__()
except StopAsyncIteration:
pass
else:
Expand Down Expand Up @@ -353,8 +353,7 @@ def _wrap_async_fixture(
runner: Runner,
request: FixtureRequest,
) -> Callable[AsyncFixtureParams, AsyncFixtureReturnType]:

@functools.wraps(fixture_function) # type: ignore[arg-type]
@functools.wraps(fixture_function)
def _async_fixture_wrapper(
*args: AsyncFixtureParams.args,
**kwargs: AsyncFixtureParams.kwargs,
Expand Down Expand Up @@ -782,7 +781,7 @@ def _get_marked_loop_scope(
return scope


def _get_default_test_loop_scope(config: Config) -> _ScopeName:
def _get_default_test_loop_scope(config: Config) -> Any:
return config.getini("asyncio_default_test_loop_scope")


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