diff --git a/Lib/encodings/base64_codec.py b/Lib/encodings/base64_codec.py
index 881d1ba0bee..8e7703b3b60 100644
--- a/Lib/encodings/base64_codec.py
+++ b/Lib/encodings/base64_codec.py
@@ -1,7 +1,6 @@
 """Python 'base64_codec' Codec - base64 content transfer encoding.
 
-This codec de/encodes from bytes to bytes and is therefore usable with
-bytes.transform() and bytes.untransform().
+This codec de/encodes from bytes to bytes.
 
 Written by Marc-Andre Lemburg (mal@lemburg.com).
 """
diff --git a/Lib/encodings/hex_codec.py b/Lib/encodings/hex_codec.py
index f2ed0a7658e..9fb10728044 100644
--- a/Lib/encodings/hex_codec.py
+++ b/Lib/encodings/hex_codec.py
@@ -1,7 +1,6 @@
 """Python 'hex_codec' Codec - 2-digit hex content transfer encoding.
 
-This codec de/encodes from bytes to bytes and is therefore usable with
-bytes.transform() and bytes.untransform().
+This codec de/encodes from bytes to bytes.
 
 Written by Marc-Andre Lemburg (mal@lemburg.com).
 """
diff --git a/Lib/encodings/quopri_codec.py b/Lib/encodings/quopri_codec.py
index 70f70837938..0533dbe4e7b 100644
--- a/Lib/encodings/quopri_codec.py
+++ b/Lib/encodings/quopri_codec.py
@@ -1,7 +1,6 @@
 """Codec for quoted-printable encoding.
 
-This codec de/encodes from bytes to bytes and is therefore usable with
-bytes.transform() and bytes.untransform().
+This codec de/encodes from bytes to bytes.
 """
 
 import codecs
diff --git a/Lib/encodings/rot_13.py b/Lib/encodings/rot_13.py
index fff9153b4c6..1f2f47bb34f 100755
--- a/Lib/encodings/rot_13.py
+++ b/Lib/encodings/rot_13.py
@@ -1,8 +1,7 @@
 #!/usr/bin/env python
 """ Python Character Mapping Codec for ROT13.
 
-This codec de/encodes from str to str and is therefore usable with
-str.transform() and str.untransform().
+This codec de/encodes from str to str.
 
 Written by Marc-Andre Lemburg (mal@lemburg.com).
 """
diff --git a/Lib/encodings/uu_codec.py b/Lib/encodings/uu_codec.py
index e3269e40cd3..14540950af6 100644
--- a/Lib/encodings/uu_codec.py
+++ b/Lib/encodings/uu_codec.py
@@ -1,7 +1,6 @@
 """Python 'uu_codec' Codec - UU content transfer encoding.
 
-This codec de/encodes from bytes to bytes and is therefore usable with
-bytes.transform() and bytes.untransform().
+This codec de/encodes from bytes to bytes.
 
 Written by Marc-Andre Lemburg (mal@lemburg.com). Some details were
 adapted from uu.py which was written by Lance Ellinghouse and
diff --git a/Lib/encodings/zlib_codec.py b/Lib/encodings/zlib_codec.py
index 4c81ca115a7..95908a4b4a1 100644
--- a/Lib/encodings/zlib_codec.py
+++ b/Lib/encodings/zlib_codec.py
@@ -1,7 +1,6 @@
 """Python 'zlib_codec' Codec - zlib compression encoding.
 
-This codec de/encodes from bytes to bytes and is therefore usable with
-bytes.transform() and bytes.untransform().
+This codec de/encodes from bytes to bytes.
 
 Written by Marc-Andre Lemburg (mal@lemburg.com).
 """