Move Node.fspath to legacypath plugin

src/_pytest/legacypath.py

@@ -15,6 +15,7 @@
 from _pytest.compat import LEGACY_PATH
 from _pytest.compat import legacy_path
 from _pytest.deprecated import check_ispytest
+from _pytest.nodes import Node
 from _pytest.terminal import TerminalReporter
 
 if TYPE_CHECKING:
@@ -386,6 +387,15 @@ def Config__getini_unknown_type(
         raise ValueError(f"unknown configuration type: {type}", value)
 
 
+def Node_fspath(self: Node) -> LEGACY_PATH:
+    """(deprecated) returns a legacy_path copy of self.path"""
+    return legacy_path(self.path)
+
+
+def Node_fspath_set(self: Node, value: LEGACY_PATH) -> None:
+    self.path = Path(value)
+
+
 def pytest_configure(config: pytest.Config) -> None:
     mp = pytest.MonkeyPatch()
     config.add_cleanup(mp.undo)
@@ -429,3 +439,6 @@ def pytest_configure(config: pytest.Config) -> None:
 
     # Add pathlist configuration type.
     mp.setattr(pytest.Config, "_getini_unknown_type", Config__getini_unknown_type)
+
+    # Add Node.fspath property.
+    mp.setattr(Node, "fspath", property(Node_fspath, Node_fspath_set), raising=False)

src/_pytest/nodes.py

@@ -24,7 +24,6 @@
 from _pytest._code.code import TerminalRepr
 from _pytest.compat import cached_property
 from _pytest.compat import LEGACY_PATH
-from _pytest.compat import legacy_path
 from _pytest.config import Config
 from _pytest.config import ConftestImportFailure
 from _pytest.deprecated import FSCOLLECTOR_GETHOOKPROXY_ISINITPATH
@@ -238,15 +237,6 @@ def __init__(
         # Deprecated alias. Was never public. Can be removed in a few releases.
         self._store = self.stash
 
-    @property
-    def fspath(self) -> LEGACY_PATH:
-        """(deprecated) returns a legacy_path copy of self.path"""
-        return legacy_path(self.path)
-
-    @fspath.setter
-    def fspath(self, value: LEGACY_PATH) -> None:
-        self.path = Path(value)
-
     @classmethod
     def from_parent(cls, parent: "Node", **kw):
         """Public constructor for Nodes.

testing/test_legacypath.py

@@ -6,6 +6,18 @@
 from _pytest.legacypath import Testdir
 
 
+def test_item_fspath(pytester: pytest.Pytester) -> None:
+    pytester.makepyfile("def test_func(): pass")
+    items, hookrec = pytester.inline_genitems()
+    assert len(items) == 1
+    (item,) = items
+    items2, hookrec = pytester.inline_genitems(item.nodeid)
+    (item2,) = items2
+    assert item2.name == item.name
+    assert item2.fspath == item.fspath  # type: ignore[attr-defined]
+    assert item2.path == item.path
+
+
 def test_testdir_testtmproot(testdir: Testdir) -> None:
     """Check test_tmproot is a py.path attribute for backward compatibility."""
     assert testdir.test_tmproot.check(dir=1)