Added SEEK_* constants. Fixes #711830.
diff --git a/Misc/NEWS b/Misc/NEWS
index 6385157..0492392 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -37,6 +37,8 @@
 Library
 -------
 
+- os.{SEEK_SET, SEEK_CUR, SEEK_END} have been added for convenience.
+
 - Enhancements to the csv module:
 
   + Dialects are now validated by the underlying C code, better