diff --git a/Lib/Para.py b/Lib/Para.py
index 6a7057ddbfd..c9b3bdd1bd6 100644
--- a/Lib/Para.py
+++ b/Lib/Para.py
@@ -1,4 +1,5 @@
 # Text formatting abstractions
+# Note -- this module is obsolete, it's too slow anyway
 
 
 # Oft-used type object
diff --git a/Lib/fmt.py b/Lib/fmt.py
index c0963069e01..4a655e4c907 100644
--- a/Lib/fmt.py
+++ b/Lib/fmt.py
@@ -1,4 +1,5 @@
 # Text formatting abstractions
+# Note -- this module is obsolete, it's too slow anyway
 
 
 import string
diff --git a/Lib/lib-old/Para.py b/Lib/lib-old/Para.py
index 6a7057ddbfd..c9b3bdd1bd6 100644
--- a/Lib/lib-old/Para.py
+++ b/Lib/lib-old/Para.py
@@ -1,4 +1,5 @@
 # Text formatting abstractions
+# Note -- this module is obsolete, it's too slow anyway
 
 
 # Oft-used type object
diff --git a/Lib/lib-old/fmt.py b/Lib/lib-old/fmt.py
index c0963069e01..4a655e4c907 100644
--- a/Lib/lib-old/fmt.py
+++ b/Lib/lib-old/fmt.py
@@ -1,4 +1,5 @@
 # Text formatting abstractions
+# Note -- this module is obsolete, it's too slow anyway
 
 
 import string