BPython:

- applied Campbell Barton's patch for access to Oops location and selection of materials, mesh data and objects, slightly modified. Thanks, Campbell;
- got rid of warnings in many files, hopefully not introducing any other during the process.  Mostly this was done: 1) new EXPP_incr_ret_True/False functions were added and used instead of "Py_INCREF(Py_True/False); return Py_True/False;".  Currently at least the functions use the fact that PyTrue/False == 1/0 and use 1 and 0 to avoid the warnings. 2) Filling of certain types structs got 0's added for all not defined data and methods.  This is surely Python version specific, since these structs can change size and content at each major version number Python update.

source/blender/python/api2_2x/Material.c

@@ -26,7 +26,7 @@
  * This is a new part of Blender.
  *
  * Contributor(s): Willian P. Germano, Michel Selten, Alex Mole,
- * Alexander Szakaly
+ * Alexander Szakaly, Campbell Barton
  *
  * ***** END GPL/BL DUAL LICENSE BLOCK *****
 */
@@ -47,6 +47,10 @@
 #include "Material.h"
 #include "Ipo.h"
 
+/* only used for .oopsLoc at the moment */
+#include "DNA_oops_types.h"
+#include "DNA_space_types.h"
+
 /*****************************************************************************/
 /* Python BPy_Material defaults: */
 /*****************************************************************************/
@@ -670,6 +674,7 @@ PyTypeObject Material_Type = {
 	0, 0, 0, 0, 0, 0,
 	BPy_Material_methods,	/* tp_methods */
 	0,			/* tp_members */
+	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* up to tp_del to avoid a warning */
 };
 
 /*****************************************************************************/
@@ -1217,12 +1222,10 @@ static PyObject *Material_clearIpo( BPy_Material * self )
 			id->us--;
 		mat->ipo = NULL;
 
-		Py_INCREF( Py_True );
-		return Py_True;
+		return EXPP_incr_ret_True();
 	}
 
-	Py_INCREF( Py_False );	/* no ipo found */
-	return Py_False;
+	return EXPP_incr_ret_False(); /* no ipo found */
 }
 
 static PyObject *Material_setName( BPy_Material * self, PyObject * args )
@@ -1998,10 +2001,44 @@ static PyObject *Material_getAttr( BPy_Material * self, char *name )
 	else if( strcmp( name, "users" ) == 0 )
 		attr = PyInt_FromLong( ( double ) self->material->
 					   id.us );
+  else if (strcmp(name, "oopsLoc") == 0) {
+    if (G.soops) { 
+      Oops *oops= G.soops->oops.first;
+      while(oops) {
+        if(oops->type==ID_MA) {
+          if ((Material *)oops->id == self->material) {
+            return (Py_BuildValue ("ff", oops->x, oops->y));
+          }
+        }
+        oops= oops->next;
+      }
+    }
+    Py_INCREF (Py_None);
+    return (Py_None);
+  }
+  /* Select in the oops view only since its a mesh */
+  else if (strcmp(name, "oopsSel") == 0) {
+    if (G.soops) {
+      Oops *oops= G.soops->oops.first;
+      while(oops) {
+        if(oops->type==ID_MA) {
+          if ((Material *)oops->id == self->material) {
+            if (oops->flag & SELECT)
+							return EXPP_incr_ret_True();
+            else
+							return EXPP_incr_ret_False();
+          }
+        }
+        oops= oops->next;
+      }
+    }
+    Py_INCREF (Py_None);
+		return (Py_None);    
+  }    
 	else if( strcmp( name, "__members__" ) == 0 ) {
-		attr =		/* 28 items */
+		attr =		/* 30 items */
 			Py_BuildValue
-			( "[s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s]",
+			( "[s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s,s]",
 			  "name", "mode", "rgbCol", "specCol", "mirCol", "R",
 			  "G", "B", "alpha", "amb", "emit", "ref", "spec",
 			  "specTransp", "add", "zOffset", "haloSize",
@@ -2009,7 +2046,7 @@ static PyObject *Material_getAttr( BPy_Material * self, char *name )
 			  "subSize", "hard", "nFlares", "nStars", "nLines",
 			  "nRings", "rayMirr", "rayMirrDepth", "fresnelDepth",
 			  "fresnelDepthFac", "IOR", "transDepth",
-			  "fresnelTrans", "fresnelTransFac", "users" );
+			  "fresnelTrans", "fresnelTransFac", "users", "oopsLoc", "oopsSel" );
 	}
 
 	if( !attr )
@@ -2129,7 +2166,46 @@ static int Material_setAttr( BPy_Material * self, char *name,
 		error = Material_setFresnelTrans( self, valtuple );
 	else if( strcmp( name, "fresnelTransFac" ) == 0 )
 		error = Material_setFresnelTransFac( self, valtuple );
-
+  else if (strcmp (name, "oopsLoc") == 0) {
+    if (G.soops) {
+      Oops *oops= G.soops->oops.first;
+      while(oops) {
+        if(oops->type==ID_MA) {
+          if ((Material *)oops->id == self->material) {
+            if (!PyArg_ParseTuple  (value, "ff", &(oops->x),&(oops->y)))
+							PyErr_SetString(PyExc_AttributeError,
+								"expected two floats as arguments");
+            break;
+          }
+        }
+        oops= oops->next;
+      }
+			if (!oops)
+				PyErr_SetString(PyExc_RuntimeError,
+					"couldn't find oopsLoc data for this material!");
+			else error = EXPP_incr_ret (Py_None);
+    }
+  }
+  /* Select in the oops view only since its a mesh */
+  else if (strcmp (name, "oopsSel") == 0) {
+    int sel;
+    if (!PyArg_Parse (value, "i", &sel))
+      PyErr_SetString (PyExc_TypeError, "expected an integer, 0 or 1");
+		else if (G.soops) {
+      Oops *oops= G.soops->oops.first;
+      while(oops) {
+        if(oops->type==ID_MA) {
+          if ((Material *)oops->id == self->material) {
+            if(sel == 0) oops->flag &= ~SELECT;
+            else oops->flag |= SELECT;
+            break;
+          }
+        }
+        oops= oops->next;
+      }
+    	error = EXPP_incr_ret (Py_None);
+    }
+  }	
 	else {			/* Error */
 		Py_DECREF( valtuple );
 		return ( EXPP_ReturnIntError( PyExc_AttributeError, name ) );