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/classobject.h	Mon May 17 08:34:16 1993 +0000
+++ b/Include/classobject.h	Wed May 19 14:50:45 1993 +0000
@@ -37,7 +37,7 @@
 #define is_instancemethodobject(op) ((op)->ob_type == &Instancemethodtype)
 
 extern object *newclassobject PROTO((object *, object *, object *));
-extern object *newinstanceobject PROTO((object *));
+extern object *newinstanceobject PROTO((object *, object *));
 extern object *newinstancemethodobject PROTO((object *, object *));
 
 extern object *instancemethodgetfunc PROTO((object *));