Cleanup in packaging: don’t unnecessarily instantiate exceptions
diff --git a/Lib/packaging/run.py b/Lib/packaging/run.py
index 1895dde..7e791a4 100644
--- a/Lib/packaging/run.py
+++ b/Lib/packaging/run.py
@@ -383,7 +383,7 @@
     """
     #opts = _parse_args(args[1:], '', ['simple', 'xmlrpc'])
     # 1. what kind of index is requested ? (xmlrpc / simple)
-    raise NotImplementedError()
+    raise NotImplementedError
 
 
 actions = [