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/ceval.c	Thu Sep 20 20:43:28 2001 +0000
+++ b/Python/ceval.c	Thu Sep 20 20:46:19 2001 +0000
@@ -192,7 +192,7 @@
 	{NULL,          NULL}   /* Sentinel */
 };
 
-static struct memberlist gen_memberlist[] = {
+static PyMemberDef gen_memberlist[] = {
 	{"gi_frame",	T_OBJECT, offsetof(genobject, gi_frame),	RO},
 	{"gi_running",	T_INT,    offsetof(genobject, gi_running),	RO},
 	{NULL}	/* Sentinel */