add error message to all `nnictl package xxx` (#3271)

nni/tools/nnictl/nnictl.py

@@ -246,12 +246,9 @@ def parse_args():
     def show_messsage_for_nnictl_package(args):
         print_error('nnictl package command is replaced by nnictl algo, please run nnictl algo -h to show the usage')
 
-    parser_package_subparsers = subparsers.add_parser('package', help='control nni tuner and assessor packages').add_subparsers()
-    parser_package_subparsers.add_parser('install', help='install packages').set_defaults(func=show_messsage_for_nnictl_package)
-    parser_package_subparsers.add_parser('uninstall', help='uninstall packages').set_defaults(func=show_messsage_for_nnictl_package)
-    parser_package_subparsers.add_parser('show', help='show the information of packages').set_defaults(
-        func=show_messsage_for_nnictl_package)
-    parser_package_subparsers.add_parser('list', help='list installed packages').set_defaults(func=show_messsage_for_nnictl_package)
+    parser_package_subparsers = subparsers.add_parser('package', help='control nni tuner and assessor packages')
+    parser_package_subparsers.add_argument('args', help='all subcommands have deprecated, nnictl package command is replaced by nnictl algo, please run nnictl algo -h to show the usage', nargs=argparse.REMAINDER)
+    parser_package_subparsers.set_defaults(func=show_messsage_for_nnictl_package)
 
     #parse tensorboard command
     parser_tensorboard = subparsers.add_parser('tensorboard', help='manage tensorboard')