Set __module__ = "pytest" on most public types

It doesn't seem possible to cleanly set it on dataclasses and namedtuple
types, so skipped these for now.

Fix #13812.

Author: bluetech

src/_pytest/capture.py

@@ -917,6 +917,8 @@ class CaptureFixture(Generic[AnyStr]):
     """Object returned by the :fixture:`capsys`, :fixture:`capsysbinary`,
     :fixture:`capfd` and :fixture:`capfdbinary` fixtures."""
 
+    __module__ = "pytest"
+
     def __init__(
         self,
         captureclass: type[CaptureBase[AnyStr]],

src/_pytest/config/__init__.py

@@ -404,6 +404,8 @@ class PytestPluginManager(PluginManager):
     * ``conftest.py`` loading during start-up.
     """
 
+    __module__ = "pytest"
+
     def __init__(self) -> None:
         from _pytest.assertion import DummyRewriteHook
         from _pytest.assertion import RewriteHook
@@ -982,6 +984,8 @@ class Config:
         invocation.
     """
 
+    __module__ = "pytest"
+
     @final
     @dataclasses.dataclass(frozen=True)
     class InvocationParams:

src/_pytest/config/argparsing.py

@@ -36,6 +36,8 @@ class Parser:
         there's an error processing the command line arguments.
     """
 
+    __module__ = "pytest"
+
     prog: str | None = None
 
     def __init__(
@@ -370,6 +372,8 @@ def __repr__(self) -> str:
 class OptionGroup:
     """A group of options shown in its own section."""
 
+    __module__ = "pytest"
+
     def __init__(
         self,
         name: str,

src/_pytest/doctest.py

@@ -249,6 +249,8 @@ def _get_runner(
 
 
 class DoctestItem(Item):
+    __module__ = "pytest"
+
     def __init__(
         self,
         name: str,

src/_pytest/fixtures.py

@@ -366,6 +366,8 @@ class FixtureRequest(abc.ABC):
     ``param`` attribute in case the fixture is parametrized.
     """
 
+    __module__ = "pytest"
+
     def __init__(
         self,
         pyfuncitem: Function,
@@ -801,6 +803,8 @@ def addfinalizer(self, finalizer: Callable[[], object]) -> None:
 class FixtureLookupError(LookupError):
     """Could not return a requested fixture (missing or invalid)."""
 
+    __module__ = "pytest"
+
     def __init__(
         self, argname: str | None, request: FixtureRequest, msg: str | None = None
     ) -> None:
@@ -964,6 +968,8 @@ class FixtureDef(Generic[FixtureValue]):
     considered public stable API.
     """
 
+    __module__ = "pytest"
+
     def __init__(
         self,
         config: Config,

src/_pytest/legacypath.py

@@ -47,6 +47,8 @@ class Testdir:
     to `legacy_path` objects as necessary.
     """
 
+    __module__ = "pytest"
+
     __test__ = False
 
     CLOSE_STDIN: Final = Pytester.CLOSE_STDIN

src/_pytest/logging.py

@@ -404,6 +404,8 @@ def handleError(self, record: logging.LogRecord) -> None:
 class LogCaptureFixture:
     """Provides access and control of log capturing."""
 
+    __module__ = "pytest"
+
     def __init__(self, item: nodes.Node, *, _ispytest: bool = False) -> None:
         check_ispytest(_ispytest)
         self._item = item

src/_pytest/main.py

@@ -506,6 +506,8 @@ class Dir(nodes.Directory):
         collectors.
     """
 
+    __module__ = "pytest"
+
     @classmethod
     def from_parent(  # type: ignore[override]
         cls,
@@ -552,6 +554,8 @@ class Session(nodes.Collector):
     ``Session`` collects the initial paths given as arguments to pytest.
     """
 
+    __module__ = "pytest"
+
     Interrupted = Interrupted
     Failed = Failed
     # Set on the session by runner.pytest_sessionstart.

src/_pytest/mark/structures.py

@@ -546,6 +546,8 @@ def test_function():
     applies a 'slowtest' :class:`Mark` on ``test_function``.
     """
 
+    __module__ = "pytest"
+
     # See TYPE_CHECKING above.
     if TYPE_CHECKING:
         skip: _SkipMarkDecorator

src/_pytest/monkeypatch.py

@@ -129,6 +129,8 @@ class MonkeyPatch:
         :meth:`undo` explicitly.
     """
 
+    __module__ = "pytest"
+
     def __init__(self) -> None:
         self._setattr: list[tuple[object, str, object]] = []
         self._setitem: list[tuple[Mapping[Any, Any], object, object]] = []