PEP-0318, @decorator-style. In Guido's words:
"@ seems the syntax that everybody can hate equally"
Implementation by Mark Russell, from SF #979728.
diff --git a/Include/token.h b/Include/token.h
index 4e2ec06..4250000 100644
--- a/Include/token.h
+++ b/Include/token.h
@@ -57,10 +57,11 @@
 #define DOUBLESTAREQUAL	47
 #define DOUBLESLASH	48
 #define DOUBLESLASHEQUAL 49
+#define AT              50	
 /* Don't forget to update the table _PyParser_TokenNames in tokenizer.c! */
-#define OP		50
-#define ERRORTOKEN	51
-#define N_TOKENS	52
+#define OP		51
+#define ERRORTOKEN	52
+#define N_TOKENS	53
 
 /* Special definitions for cooperation with parser */