- use static vars and functions where possible.

- use NULL rather than 0 when used as pointers.

source/blender/python/intern/bpy_intern_string.c

@@ -28,13 +28,14 @@
 
 #include <Python.h>
 
+#include "bpy_intern_string.h"
+
 PyObject *bpy_intern_str_register;
 PyObject *bpy_intern_str_unregister;
 PyObject *bpy_intern_str_bl_rna;
 PyObject *bpy_intern_str_order;
 PyObject *bpy_intern_str_attr;
 PyObject *bpy_intern_str___slots__;
-PyObject *bpy_intern_str___bases__;
 
 void bpy_intern_string_init(void)
 {

source/blender/python/intern/bpy_props.c

@@ -117,7 +117,7 @@ static PyObject *pymeth_PointerProperty= NULL;
 static PyObject *pymeth_CollectionProperty= NULL;
 static PyObject *pymeth_RemoveProperty= NULL;
 
-PyObject *pyrna_struct_as_instance(PointerRNA *ptr)
+static PyObject *pyrna_struct_as_instance(PointerRNA *ptr)
 {
 	PyObject *self= NULL;
 	/* first get self */
@@ -177,7 +177,7 @@ static PyObject *bpy_prop_deferred_return(PyObject *func, PyObject *kw)
 }
 
 /* callbacks */
-void bpy_prop_update_cb(struct bContext *C, struct PointerRNA *ptr, struct PropertyRNA *prop)
+static void bpy_prop_update_cb(struct bContext *C, struct PointerRNA *ptr, struct PropertyRNA *prop)
 {
 	PyGILState_STATE gilstate;
 	PyObject **py_data= (PyObject **)RNA_property_py_data_get(prop);