pdb: py312 updates (#10471)

stdlib/pdb.pyi

@@ -125,6 +125,9 @@ class Pdb(Bdb, Cmd):
     def sigint_handler(self, signum: signal.Signals, frame: FrameType) -> None: ...
     def message(self, msg: str) -> None: ...
     def error(self, msg: str) -> None: ...
+    if sys.version_info >= (3, 12):
+        def set_convenience_variable(self, frame: FrameType, name: str, value: Any) -> None: ...
+
     def _select_frame(self, number: int) -> None: ...
     def _getval_except(self, arg: str, frame: FrameType | None = None) -> object: ...
     def _print_lines(

tests/stubtest_allowlists/py312.txt

@@ -67,7 +67,6 @@ pathlib.Path.__init__
 pathlib.PurePath.__init__
 pathlib.PurePath.is_relative_to
 pathlib.PurePath.relative_to
-pdb.Pdb.set_convenience_variable
 poplib.POP3_SSL.__init__
 posixpath.__all__
 posixpath.isjunction