Correct None refcount issue in Mac modules. (Are they

still used?)

Mac/Modules/dlg/_Dlgmodule.c

@@ -139,7 +139,7 @@ typedef struct DialogObject {
 PyObject *DlgObj_New(DialogPtr itself)
 {
 	DialogObject *it;
-	if (itself == NULL) return Py_None;
+	if (itself == NULL) { Py_INCREF(Py_None); return Py_None; }
 	it = PyObject_NEW(DialogObject, &Dialog_Type);
 	if (it == NULL) return NULL;
 	it->ob_itself = itself;

Mac/Modules/dlg/dlgsupport.py

@@ -202,7 +202,7 @@ class MyObjectDefinition(PEP253Mixin, GlobalObjectDefinition):
         Output("SetWRefCon(GetDialogWindow(itself), (long)it);")
 
     def outputCheckNewArg(self):
-        Output("if (itself == NULL) return Py_None;")
+        Output("if (itself == NULL) { Py_INCREF(Py_None); return Py_None; }")
 
     def outputCheckConvertArg(self):
         Output("if (v == Py_None) { *p_itself = NULL; return 1; }")

Mac/Modules/file/_Filemodule.c

@@ -153,7 +153,7 @@ typedef struct FSCatalogInfoObject {
 static PyObject *FSCatalogInfo_New(FSCatalogInfo *itself)
 {
 	FSCatalogInfoObject *it;
-	if (itself == NULL) return Py_None;
+	if (itself == NULL) { Py_INCREF(Py_None); return Py_None; }
 	it = PyObject_NEW(FSCatalogInfoObject, &FSCatalogInfo_Type);
 	if (it == NULL) return NULL;
 	it->ob_itself = *itself;

Mac/Modules/file/filesupport.py

@@ -475,7 +475,7 @@ class FSCatalogInfoDefinition(PEP253Mixin, ObjectDefinition):
         self.argref = "*"       # Store FSSpecs, but pass them by address
 
     def outputCheckNewArg(self):
-        Output("if (itself == NULL) return Py_None;")
+        Output("if (itself == NULL) { Py_INCREF(Py_None); return Py_None; }")
 
     def output_tp_newBody(self):
         Output("PyObject *self;");

Python/import.c

@@ -2059,7 +2059,7 @@ PyImport_ImportModuleLevel(char *name, PyObject *globals, PyObject *locals,
 /* Return the package that an import is being performed in.  If globals comes
    from the module foo.bar.bat (not itself a package), this returns the
    sys.modules entry for foo.bar.  If globals is from a package's __init__.py,
-   the package's entry in sys.modules is returned.
+   the package's entry in sys.modules is returned, as a borrowed reference.
 
    The *name* of the returned package is returned in buf, with the length of
    the name in *p_buflen.