diff --git a/tools/python/jwutils/Cmd.py b/tools/python/jwutils/Cmd.py
index 394bbae..8ca5be4 100644
--- a/tools/python/jwutils/Cmd.py
+++ b/tools/python/jwutils/Cmd.py
@@ -1,7 +1,6 @@
 # -*- coding: utf-8 -*-
 
 from __future__ import annotations
-from typing import Optional, List, Type, Union, TypeVar
 import inspect, sys, re, abc, argparse
 from argparse import ArgumentParser, _SubParsersAction
 
@@ -21,9 +20,9 @@ class Cmd(abc.ABC): # export
         self.name = name
         self.help = help
         self.parent = None
-        self.children: List[Cmd] = []
-        self.child_classes: List[Type[Cmd]] = []
-        self.app: Optional[Cmds] = None
+        self.children: list[Cmd] = []
+        self.child_classes: list[type[Cmd]] = []
+        self.app: Cmds|None = None
 
     async def _run(self, args):
         pass
@@ -34,7 +33,7 @@ class Cmd(abc.ABC): # export
         r.set_defaults(func=self.run)
         return r
 
-    def add_subcommands(self, cmd: Union[str, Type[Cmd], List[Type[Cmd]]]) -> None:
+    def add_subcommands(self, cmd: str|type[Cmd]|list[type[Cmd]]) -> None:
         if isinstance(cmd, str):
             sc = []
             for name, obj in inspect.getmembers(sys.modules[self.__class__.__module__]):
diff --git a/tools/python/jwutils/Cmds.py b/tools/python/jwutils/Cmds.py
index dd4402f..a784776 100644
--- a/tools/python/jwutils/Cmds.py
+++ b/tools/python/jwutils/Cmds.py
@@ -1,6 +1,5 @@
 # -*- coding: utf-8 -*-
 
-from typing import Optional
 import os, sys, argcomplete, argparse, importlib, inspect, re, pickle, asyncio, cProfile
 from argparse import ArgumentParser
 from pathlib import Path, PurePath