bump version to 2.7a3
diff --git a/Include/patchlevel.h b/Include/patchlevel.h
index a6e89f0..9edddf6 100644
--- a/Include/patchlevel.h
+++ b/Include/patchlevel.h
@@ -24,10 +24,10 @@
 #define PY_MINOR_VERSION	7
 #define PY_MICRO_VERSION	0
 #define PY_RELEASE_LEVEL	PY_RELEASE_LEVEL_ALPHA
-#define PY_RELEASE_SERIAL	2
+#define PY_RELEASE_SERIAL	3
 
 /* Version as a string */
-#define PY_VERSION      	"2.7a2+"
+#define PY_VERSION      	"2.7a3"
 /*--end constants--*/
 
 /* Subversion Revision number of this file (not of the repository) */