Allow comparrisons with None

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@25857 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/src/_pen.i

@@ -63,7 +63,10 @@ public:
         }
     }
     
-    bool operator==(const wxPen& pen) /*const*/;
+    %extend {
+        bool __eq__(const wxPen* other) { return other ? (*self == *other) : False; }
+        bool __ne__(const wxPen* other) { return other ? (*self != *other) : True;  }
+    }
 
 #ifndef __WXMAC__
 //  wxDash* GetDash() const;