Added ability to use xml resource files. Still need to add ability to

subclass wxXmlResourceHandler, etc...

Added wxGridAutoEditMixin to the mixins library package.

Made ColourSelect be derived from wxButton.

Fixed a few bugs here and there, added some missing methods, etc.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10588 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/src/libpy.c

@@ -409,6 +409,8 @@ SWIG_GetPtrObj(PyObject *obj, void **ptr, char *type) {
       Py_DECREF(sobj);
   }
   str = PyString_AsString(sobj);
+  if (str == NULL)
+      return "";
   return SWIG_GetPtr(str,ptr,type);
 }