diff --git a/src/_pytest/assertion/rewrite.py b/src/_pytest/assertion/rewrite.py
index 149101e71..b1a644cbf 100644
--- a/src/_pytest/assertion/rewrite.py
+++ b/src/_pytest/assertion/rewrite.py
@@ -17,6 +17,7 @@ from collections import defaultdict
 from pathlib import Path
 from pathlib import PurePath
 from typing import Callable
+from typing import DefaultDict
 from typing import Dict
 from typing import IO
 from typing import Iterable
@@ -668,9 +669,9 @@ class AssertionRewriter(ast.NodeVisitor):
         else:
             self.enable_assertion_pass_hook = False
         self.source = source
-        self.scope: tuple[ast.AST, ...] = ()
-        self.variables_overwrite: defaultdict[
-            tuple[ast.AST, ...], Dict[str, str]
+        self.scope: Tuple[ast.AST, ...] = ()
+        self.variables_overwrite: DefaultDict[
+            Tuple[ast.AST, ...], Dict[str, str]
         ] = defaultdict(dict)
 
     def run(self, mod: ast.Module) -> None:
diff --git a/src/_pytest/python.py b/src/_pytest/python.py
index 8b8923c85..7a6d788d4 100644
--- a/src/_pytest/python.py
+++ b/src/_pytest/python.py
@@ -60,7 +60,6 @@ from _pytest.deprecated import check_ispytest
 from _pytest.deprecated import INSTANCE_COLLECTOR
 from _pytest.deprecated import NOSE_SUPPORT_METHOD
 from _pytest.fixtures import _get_direct_parametrize_args
-from _pytest.fixtures import FixtureDef
 from _pytest.fixtures import FuncFixtureInfo
 from _pytest.fixtures import get_scope_node
 from _pytest.fixtures import IdentityFixtureDef
@@ -1189,7 +1188,7 @@ class CallSpec2:
 
 
 # Used for storing pseudo fixturedefs for direct parametrization.
-name2pseudofixturedef_key = StashKey[Dict[str, FixtureDef[Any]]]()
+name2pseudofixturedef_key = StashKey[Dict[str, IdentityFixtureDef[Any]]]()
 
 
 @final
@@ -1379,7 +1378,7 @@ class Metafunc:
         if node is None:
             name2pseudofixturedef = None
         else:
-            default: Dict[str, FixtureDef[Any]] = {}
+            default: Dict[str, IdentityFixtureDef[Any]] = {}
             name2pseudofixturedef = node.stash.setdefault(
                 name2pseudofixturedef_key, default
             )
diff --git a/testing/python/fixtures.py b/testing/python/fixtures.py
index 1d0acbac9..93b1454e5 100644
--- a/testing/python/fixtures.py
+++ b/testing/python/fixtures.py
@@ -4571,8 +4571,8 @@ def test_fixture_info_after_dynamic_parametrize(pytester: Pytester) -> None:
             assert fixture2 in (4, 5)
         """
     )
-    res = pytester.inline_run()
-    res.assertoutcome(passed=2)
+    res = pytester.runpytest()
+    res.assert_outcomes(passed=2)
 
 
 def test_reordering_after_dynamic_parametrize(pytester: Pytester):
@@ -4720,8 +4720,8 @@ def test_dont_recompute_dependency_tree_if_no_direct_dynamic_parametrize(
             assert calls[6].kwargs["parentnode"].nodeid.endswith("test")
         """
     )
-    reprec = pytester.inline_run()
-    reprec.assertoutcome(passed=6)
+    reprec = pytester.runpytest()
+    reprec.assert_outcomes(passed=6)
 
 
 def test_deduplicate_names() -> None: