diff -r 46e6a8b742d9 Lib/email/parser.py
--- a/Lib/email/parser.py	Fri Mar 15 16:51:21 2013 -0400
+++ b/Lib/email/parser.py	Fri Mar 15 16:07:05 2013 -0700
@@ -9,7 +9,7 @@
 import warnings
 from io import StringIO, TextIOWrapper
 
-from email.feedparser import FeedParser
+from email.feedparser import FeedParser, BytesFeedParser
 from email.message import Message
 from email._policybase import compat32
 
diff -r 46e6a8b742d9 Misc/ACKS
--- a/Misc/ACKS	Fri Mar 15 16:51:21 2013 -0400
+++ b/Misc/ACKS	Fri Mar 15 16:07:05 2013 -0700
@@ -1360,4 +1360,4 @@
 Kai Zhu
 Tarek Ziadé
 Peter Åstrand
-
+Edmond Burnett
diff -r 46e6a8b742d9 Misc/NEWS
--- a/Misc/NEWS	Fri Mar 15 16:51:21 2013 -0400
+++ b/Misc/NEWS	Fri Mar 15 16:07:05 2013 -0700
@@ -280,6 +280,9 @@
 Library
 -------
 
+- Issue #17431: Fix missing import of BytesFeedParser from email.parser. Patch
+  by Edmond Burnett.
+
 - Issue #12921: http.server's send_error takes an explain argument to send more
   information in response. Patch contributed by Karl.