config: expose PytestPluginManager for typing purposes

This type is used in hooks and transitively through `Config`.

changelog/7469.feature.rst

@@ -8,6 +8,7 @@ The newly-exported types are:
 - ``pytest.MarkGenerator`` for the :class:`pytest.mark <pytest.MarkGenerator>` singleton.
 - ``pytest.Metafunc`` for the :class:`metafunc <pytest.MarkGenerator>` argument to the :func:`pytest_generate_tests <pytest.hookspec.pytest_generate_tests>` hook.
 - ``pytest.CallInfo`` for the :class:`CallInfo <pytest.CallInfo>` type passed to various hooks.
+- ``pytest.PytestPluginManager`` for :class:`PytestPluginManager <pytest.PytestPluginManager>`.
 - ``pytest.ExceptionInfo`` for the :class:`ExceptionInfo <pytest.ExceptionInfo>` type returned from :func:`pytest.raises` and passed to various hooks.
 
 Constructing them directly is not supported; they are only meant for use in type annotations.

doc/en/reference/reference.rst

@@ -896,7 +896,7 @@ Parser
 PytestPluginManager
 ~~~~~~~~~~~~~~~~~~~
 
-.. autoclass:: _pytest.config.PytestPluginManager()
+.. autoclass:: pytest.PytestPluginManager()
     :members:
     :undoc-members:
     :inherited-members:

src/_pytest/config/__init__.py

@@ -290,7 +290,7 @@ def get_config(
 
 def get_plugin_manager() -> "PytestPluginManager":
     """Obtain a new instance of the
-    :py:class:`_pytest.config.PytestPluginManager`, with default plugins
+    :py:class:`pytest.PytestPluginManager`, with default plugins
     already loaded.
 
     This function can be used by integration with other tools, like hooking
@@ -632,6 +632,7 @@ class PytestPluginManager(PluginManager):
     def consider_preparse(
         self, args: Sequence[str], *, exclude_only: bool = False
     ) -> None:
+        """:meta private:"""
         i = 0
         n = len(args)
         while i < n:
@@ -653,6 +654,7 @@ class PytestPluginManager(PluginManager):
                 self.consider_pluginarg(parg)
 
     def consider_pluginarg(self, arg: str) -> None:
+        """:meta private:"""
         if arg.startswith("no:"):
             name = arg[3:]
             if name in essential_plugins:
@@ -678,12 +680,15 @@ class PytestPluginManager(PluginManager):
             self.import_plugin(arg, consider_entry_points=True)
 
     def consider_conftest(self, conftestmodule: types.ModuleType) -> None:
+        """:meta private:"""
         self.register(conftestmodule, name=conftestmodule.__file__)
 
     def consider_env(self) -> None:
+        """:meta private:"""
         self._import_plugin_specs(os.environ.get("PYTEST_PLUGINS"))
 
     def consider_module(self, mod: types.ModuleType) -> None:
+        """:meta private:"""
         self._import_plugin_specs(getattr(mod, "pytest_plugins", []))
 
     def _import_plugin_specs(

src/_pytest/hookspec.py

@@ -56,7 +56,7 @@ def pytest_addhooks(pluginmanager: "PytestPluginManager") -> None:
     """Called at plugin registration time to allow adding new hooks via a call to
     ``pluginmanager.add_hookspecs(module_or_class, prefix)``.
 
-    :param _pytest.config.PytestPluginManager pluginmanager: pytest plugin manager.
+    :param pytest.PytestPluginManager pluginmanager: The pytest plugin manager.
 
     .. note::
         This hook is incompatible with ``hookwrapper=True``.
@@ -70,7 +70,7 @@ def pytest_plugin_registered(
     """A new pytest plugin got registered.
 
     :param plugin: The plugin module or instance.
-    :param _pytest.config.PytestPluginManager manager: pytest plugin manager.
+    :param pytest.PytestPluginManager manager: pytest plugin manager.
 
     .. note::
         This hook is incompatible with ``hookwrapper=True``.
@@ -94,8 +94,8 @@ def pytest_addoption(parser: "Parser", pluginmanager: "PytestPluginManager") ->
         To add ini-file values call :py:func:`parser.addini(...)
         <_pytest.config.argparsing.Parser.addini>`.
 
-    :param _pytest.config.PytestPluginManager pluginmanager:
-        pytest plugin manager, which can be used to install :py:func:`hookspec`'s
+    :param pytest.PytestPluginManager pluginmanager:
+        The pytest plugin manager, which can be used to install :py:func:`hookspec`'s
         or :py:func:`hookimpl`'s and allow one plugin to call another plugin's hooks
         to change how command line options are added.
 
@@ -152,7 +152,7 @@ def pytest_cmdline_parse(
         ``plugins`` arg when using `pytest.main`_ to perform an in-process
         test run.
 
-    :param _pytest.config.PytestPluginManager pluginmanager: Pytest plugin manager.
+    :param pytest.PytestPluginManager pluginmanager: The pytest plugin manager.
     :param List[str] args: List of arguments passed on the command line.
     """
 

src/pytest/__init__.py

@@ -13,6 +13,7 @@ from _pytest.config import ExitCode
 from _pytest.config import hookimpl
 from _pytest.config import hookspec
 from _pytest.config import main
+from _pytest.config import PytestPluginManager
 from _pytest.config import UsageError
 from _pytest.debugging import pytestPDB as __pytestPDB
 from _pytest.fixtures import _fillfuncargs
@@ -114,6 +115,7 @@ __all__ = [
     "PytestDeprecationWarning",
     "PytestExperimentalApiWarning",
     "Pytester",
+    "PytestPluginManager",
     "PytestUnhandledCoroutineWarning",
     "PytestUnhandledThreadExceptionWarning",
     "PytestUnknownMarkWarning",