config: add Config.{rootpath,inipath}, turn Config.{rootdir,inifile} to properties

Author: bluetech

changelog/7685.improvement.rst

@@ -0,0 +1,3 @@
+Added two new attributes :attr:`rootpath <_pytest.config.Config.rootpath>` and :attr:`inipath <_pytest.config.Config.inipath>` to :class:`Config <_pytest.config.Config>`.
+These attributes are :class:`pathlib.Path` versions of the existing :attr:`rootdir <_pytest.config.Config.rootdir>` and :attr:`inifile <_pytest.config.Config.inifile>` attributes,
+and should be preferred over them when possible.

src/_pytest/config/__init__.py

@@ -907,18 +907,54 @@ def __init__(
         if TYPE_CHECKING:
             from _pytest.cacheprovider import Cache
 
+            self.rootpath = None  # type: Path # type: ignore[assignment]
+            """The path to the :ref:`rootdir <rootdir>`.
+
+            :type: pathlib.Path
+
+            .. versionadded:: 6.1
+            """
+            self.inipath = None  # type: Optional[Path]
+            """The path to the :ref:`configfile <configfiles>`.
+
+            :type: Optional[pathlib.Path]
+
+            .. versionadded:: 6.1
+            """
+
             self.cache = None  # type: Optional[Cache]
 
     @property
     def invocation_dir(self) -> py.path.local:
         """The directory from which pytest was invoked.
 
-        Prefer to use :attr:`invocation_params.dir <InvocationParams.dir>`.
+        Prefer to use :attr:`invocation_params.dir <InvocationParams.dir>`,
+        which is a :class:`pathlib.Path`.
 
         :type: py.path.local
         """
         return py.path.local(str(self.invocation_params.dir))
 
+    @property
+    def rootdir(self) -> py.path.local:
+        """The path to the :ref:`rootdir <rootdir>`.
+
+        Prefer to use :attr:`rootpath`, which is a :class:`pathlib.Path`.
+
+        :type: py.path.local
+        """
+        return py.path.local(str(self.rootpath))
+
+    @property
+    def inifile(self) -> Optional[py.path.local]:
+        """The path to the :ref:`configfile <configfiles>`.
+
+        Prefer to use :attr:`inipath`, which is a :class:`pathlib.Path`.
+
+        :type: Optional[py.path.local]
+        """
+        return py.path.local(str(self.inipath)) if self.inipath else None
+
     def add_cleanup(self, func: Callable[[], None]) -> None:
         """Add a function to be called when the config object gets out of
         use (usually coninciding with pytest_unconfigure)."""
@@ -1029,8 +1065,8 @@ def _initini(self, args: Sequence[str]) -> None:
             rootdir_cmd_arg=ns.rootdir or None,
             config=self,
         )
-        self.rootdir = py.path.local(str(rootpath))
-        self.inifile = py.path.local(str(inipath)) if inipath else None
+        self.rootpath = rootpath
+        self.inipath = inipath
         self.inicfg = inicfg
         self._parser.extra_info["rootdir"] = self.rootdir
         self._parser.extra_info["inifile"] = self.inifile