Add optional docstrings to member descriptors. For backwards compatibility, this required all places where an array of "struct memberlist" structures was declared that is referenced from a type's tp_members slot to change the type of the structure to PyMemberDef; "struct memberlist" is now only used by old code that still calls PyMember_Get/Set. The code in PyObject_GenericGetAttr/SetAttr now calls the new APIs PyMember_GetOne/SetOne, which take a PyMemberDef argument. As examples, I added actual docstrings to the attributes of a few types: file, complex, instance method, super, and xxsubtype.spamlist. Also converted the symtable to new style getattr.

--- a/Python/compile.c	Thu Sep 20 20:43:28 2001 +0000
+++ b/Python/compile.c	Thu Sep 20 20:46:19 2001 +0000
@@ -73,7 +73,7 @@
 
 #define OFF(x) offsetof(PyCodeObject, x)
 
-static struct memberlist code_memberlist[] = {
+static PyMemberDef code_memberlist[] = {
 	{"co_argcount",	T_INT,		OFF(co_argcount),	READONLY},
 	{"co_nlocals",	T_INT,		OFF(co_nlocals),	READONLY},
 	{"co_stacksize",T_INT,		OFF(co_stacksize),	READONLY},