ifdef out support for for python owning and freeing BPy_StructRNA because this is only used for doc generation and it makes _every_ blender/python instance 4 bytes bigger - vertex/bezier point/object/scene/group etc.

source/blender/python/intern/bpy_operator.c

@@ -397,7 +397,9 @@ static PyObject *pyop_getrna(PyObject *UNUSED(self), PyObject *value)
 
 	
 	pyrna= (BPy_StructRNA *)pyrna_struct_CreatePyObject(&ptr);
+#ifdef PYRNA_FREE_SUPPORT
 	pyrna->freeptr= TRUE;
+#endif
 	return (PyObject *)pyrna;
 }
 

source/blender/python/intern/bpy_rna.c

@@ -957,11 +957,13 @@ static int pyrna_struct_clear(BPy_StructRNA *self)
 /* use our own dealloc so we can free a property if we use one */
 static void pyrna_struct_dealloc(BPy_StructRNA *self)
 {
+#ifdef PYRNA_FREE_SUPPORT
 	if (self->freeptr && self->ptr.data) {
 		IDP_FreeProperty(self->ptr.data);
 		MEM_freeN(self->ptr.data);
 		self->ptr.data= NULL;
 	}
+#endif /* PYRNA_FREE_SUPPORT */
 
 #ifdef USE_WEAKREFS
 	if (self->in_weakreflist != NULL) {
@@ -5495,7 +5497,9 @@ PyObject *pyrna_struct_CreatePyObject(PointerRNA *ptr)
 	}
 
 	pyrna->ptr= *ptr;
+#ifdef PYRNA_FREE_SUPPORT
 	pyrna->freeptr= FALSE;
+#endif
 
 #ifdef USE_PYRNA_STRUCT_REFERENCE
 	pyrna->reference= NULL;

source/blender/python/intern/bpy_rna.h

@@ -62,6 +62,11 @@
 #if defined(USE_PYRNA_INVALIDATE_GC) && defined(USE_PYRNA_INVALIDATE_WEAKREF)
 #error "Only 1 reference check method at a time!"
 #endif
+
+/* only used by operator introspection get_rna(), this is only used for doc gen
+ * so prefer the leak to the memory bloat for now. */
+// #define PYRNA_FREE_SUPPORT
+
 /* --- end bpy build options --- */
 
 struct ID;
@@ -108,7 +113,10 @@ typedef struct {
 	 * hold onto the collection iterator to prevent it from freeing allocated data we may use */
 	PyObject *reference;
 #endif /* !USE_PYRNA_STRUCT_REFERENCE */
+
+#ifdef PYRNA_FREE_SUPPORT
 	int freeptr; /* needed in some cases if ptr.data is created on the fly, free when deallocing */
+#endif /* PYRNA_FREE_SUPPORT */
 } BPy_StructRNA;
 
 typedef struct {