Merge UNPACK_LIST and UNPACK_TUPLE into a single UNPACK_SEQUENCE, sin…

…ce they

did the same anyway.

I'm not sure what to do with Tools/compiler/compiler/* -- that isn't part of
distutils, is it ? Should it try to be compatible with old bytecode version ?

Doc/lib/libdis.tex

@@ -337,14 +337,14 @@ \subsection{Python Byte Code Instructions}
 \member{co_names} attribute of the code object.
 \end{opcodedesc}
 
-\begin{opcodedesc}{UNPACK_TUPLE}{count}
+\begin{opcodedesc}{UNPACK_SEQUENCE}{count}
 Unpacks TOS into \var{count} individual values, which are put onto
 the stack right-to-left.
 \end{opcodedesc}
 
-\begin{opcodedesc}{UNPACK_LIST}{count}
-Unpacks TOS into \var{count} individual values.
-\end{opcodedesc}
+%\begin{opcodedesc}{UNPACK_LIST}{count}
+%This opcode is obsolete.
+%\end{opcodedesc}
 
 %\begin{opcodedesc}{UNPACK_ARG}{count}
 %This opcode is obsolete.

Include/opcode.h

@@ -76,8 +76,8 @@ redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES.
 
 #define STORE_NAME	90	/* Index in name list */
 #define DELETE_NAME	91	/* "" */
-#define UNPACK_TUPLE	92	/* Number of tuple items */
-#define UNPACK_LIST	93	/* Number of list items */
+#define UNPACK_SEQUENCE	92	/* Number of sequence items */
+
 #define STORE_ATTR	95	/* Index in name list */
 #define DELETE_ATTR	96	/* "" */
 #define STORE_GLOBAL	97	/* "" */

Lib/dis.py

@@ -206,8 +206,8 @@ def jabs_op(name, op):
 
 name_op('STORE_NAME', 90)	# Index in name list 
 name_op('DELETE_NAME', 91)	# "" 
-def_op('UNPACK_TUPLE', 92)	# Number of tuple items 
-def_op('UNPACK_LIST', 93)	# Number of list items 
+def_op('UNPACK_SEQUENCE', 92)	# Number of tuple items 
+
 name_op('STORE_ATTR', 95)	# Index in name list 
 name_op('DELETE_ATTR', 96)	# ""
 name_op('STORE_GLOBAL', 97)	# ""

Python/ceval.c

@@ -1165,8 +1165,7 @@ eval_code2(PyCodeObject *co, PyObject *globals, PyObject *locals,
 		default: switch (opcode) {
 #endif
 
-		case UNPACK_TUPLE:
-		case UNPACK_LIST:
+		case UNPACK_SEQUENCE:
 			v = POP();
 			if (PyTuple_Check(v)) {
 				if (PyTuple_Size(v) != oparg) {

Python/compile.c

@@ -1729,27 +1729,14 @@ com_assign_trailer(struct compiling *c, node *n, int assigning)
 }
 
 static void
-com_assign_tuple(struct compiling *c, node *n, int assigning)
+com_assign_sequence(struct compiling *c, node *n, int assigning)
 {
 	int i;
 	if (TYPE(n) != testlist)
 		REQ(n, exprlist);
 	if (assigning) {
 		i = (NCH(n)+1)/2;
-		com_addoparg(c, UNPACK_TUPLE, i);
-		com_push(c, i-1);
-	}
-	for (i = 0; i < NCH(n); i += 2)
-		com_assign(c, CHILD(n, i), assigning);
-}
-
-static void
-com_assign_list(struct compiling *c, node *n, int assigning)
-{
-	int i;
-	if (assigning) {
-		i = (NCH(n)+1)/2;
-		com_addoparg(c, UNPACK_LIST, i);
+		com_addoparg(c, UNPACK_SEQUENCE, i);
 		com_push(c, i-1);
 	}
 	for (i = 0; i < NCH(n); i += 2)
@@ -1775,7 +1762,7 @@ com_assign(struct compiling *c, node *n, int assigning)
 		case exprlist:
 		case testlist:
 			if (NCH(n) > 1) {
-				com_assign_tuple(c, n, assigning);
+				com_assign_sequence(c, n, assigning);
 				return;
 			}
 			n = CHILD(n, 0);
@@ -1843,7 +1830,7 @@ com_assign(struct compiling *c, node *n, int assigning)
 						  "can't assign to []");
 					return;
 				}
-				com_assign_list(c, n, assigning);
+				com_assign_sequence(c, n, assigning);
 				return;
 			case NAME:
 				com_assign_name(c, CHILD(n, 0), assigning);
@@ -2869,7 +2856,7 @@ com_fplist(struct compiling *c, node *n)
 	}
 	else {
 		int i = (NCH(n)+1)/2;
-		com_addoparg(c, UNPACK_TUPLE, i);
+		com_addoparg(c, UNPACK_SEQUENCE, i);
 		com_push(c, i-1);
 		for (i = 0; i < NCH(n); i += 2)
 			com_fpdef(c, CHILD(n, i));

Python/import.c

@@ -66,7 +66,7 @@ extern time_t PyOS_GetLastModificationTime(char *, FILE *);
 /* XXX Perhaps the magic number should be frozen and a version field
    added to the .pyc file header? */
 /* New way to come up with the magic number: (YEAR-1995), MONTH, DAY */
-#define MAGIC (50428 | ((long)'\r'<<16) | ((long)'\n'<<24))
+#define MAGIC (50811 | ((long)'\r'<<16) | ((long)'\n'<<24))
 
 /* Magic word as global; note that _PyImport_Init() can change the
    value of this global to accommodate for alterations of how the