pyweb: Handle Keyerror exception

Change-Id: I16ea149917b911ba074415511d1f5053439c33bb

wizards/com/sun/star/wizards/web/WWD_Events.py

@@ -19,7 +19,6 @@ import traceback
 import uno
 import time
 
-#from common.Desktop import Desktop
 from .WWD_Startup import WWD_Startup
 from .WWD_General import WWD_General
 from .WebWizardConst import *

wizards/com/sun/star/wizards/web/WebConfigSet.py

@@ -147,7 +147,10 @@ class WebConfigSet(ConfigGroup):
         return self.childrenList[i]
 
     def getElement(self, o):
-        return self.childrenMap[o]
+        try:
+            return self.childrenMap[o]
+        except KeyError:
+            return None
 
     def getSize(self):
         return len(self.childrenList)

wizards/com/sun/star/wizards/web/WebWizard.py

@@ -17,6 +17,7 @@
 #
 import traceback
 
+from ..common.Desktop import Desktop
 from .WWD_Events import WWD_Events
 
 # The last class in the WebWizard Dialog class hirarchy.