Several changes in one: (1) dictionaries/mappings now have attributes values() and items() as well as keys(); at the C level, use the new function mappinggetnext() to iterate over a dictionary. (2) "class C(): ..." is now illegal; you must write "class C: ...". (3) Class objects now know their own name (finally!); and minor improvements to the way how classes, functions and methods are represented as strings. (4) Added an "access" statement and semantics. (This is still experimental -- as long as you don't use the keyword 'access' nothing should be changed.)

--- a/Include/opcode.h	Mon May 17 08:34:16 1993 +0000
+++ b/Include/opcode.h	Wed May 19 14:50:45 1993 +0000
@@ -100,6 +100,7 @@
 #define COMPARE_OP	106	/* Comparison operator */
 #define IMPORT_NAME	107	/* Index in name list */
 #define IMPORT_FROM	108	/* Index in name list */
+#define ACCESS_MODE	109	/* Name (mode is int on top of stack) */
 
 #define JUMP_FORWARD	110	/* Number of bytes to skip */
 #define JUMP_IF_FALSE	111	/* "" */