bpo-29800: Fix crashes in partial.__repr__ if the keys of partial.keywords are not strings (#649)

diff --git a/Misc/ACKS b/Misc/ACKS
index b7f1282..c99aeaa 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
Binary files differ
diff --git a/Misc/NEWS b/Misc/NEWS
index b2a1a6e..2f7bd7a 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -281,6 +281,9 @@
 Library
 -------
 
+- bpo-29800: Fix crashes in partial.__repr__ if the keys of partial.keywords
+  are not strings.  Patch by Michael Seifert.
+
 - bpo-8256: Fixed possible failing or crashing input() if attributes "encoding"
   or "errors" of sys.stdin or sys.stdout are not set or are not strings.