Check for None as value for update function

svn: r1109

src/GrampsParser.py

@@ -366,6 +366,7 @@ class GrampsParser:
         self.object.setMimeType(u2l(attrs['mime']))
         self.object.setDescription(u2l(attrs['description']))
         src = u2l(attrs["src"])
+        if src:
             if src[0] != '/':
                 self.object.setPath("%s/%s" % (self.base,src))
                 self.object.setLocal(1)

src/ReadXML.py

@@ -100,9 +100,8 @@ def importData(database, filename, callback):
         traceback.print_exc()
         return 0
     except:
-        GnomeErrorDialog(_("Error reading %s") % filename)
-        import traceback
-        traceback.print_exc()
+        import DisplayTrace
+        DisplayTrace.DisplayTrace()
         return 0
 
     xml_file.close()
@@ -192,9 +191,8 @@ def loadRevision(database, file, filename, revision, callback=None):
         traceback.print_exc()
         return 0
     except:
-        GnomeErrorDialog(_("Error reading %s") % filename)
-        import traceback
-        traceback.print_exc()
+        import DisplayTrace
+        DisplayTrace.DisplayTrace()
         return 0
 
     file.close()

src/Sources.py

@@ -83,6 +83,7 @@ class SourceSelector:
         del self.orig[:]
         for s in self.list:
             self.orig.append(s)
+        if self.update:
             self.update(self.parent)
         Utils.destroy_passed_object(self.sourcesel)