pyweb: Handle Keyerror exception

Change-Id: I16ea149917b911ba074415511d1f5053439c33bb
diff --git a/wizards/com/sun/star/wizards/web/WWD_Events.py b/wizards/com/sun/star/wizards/web/WWD_Events.py
index ded7466..0e75c23 100644
--- a/wizards/com/sun/star/wizards/web/WWD_Events.py
+++ b/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 *
diff --git a/wizards/com/sun/star/wizards/web/WebConfigSet.py b/wizards/com/sun/star/wizards/web/WebConfigSet.py
index 1c73761..92640dd 100644
--- a/wizards/com/sun/star/wizards/web/WebConfigSet.py
+++ b/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)
diff --git a/wizards/com/sun/star/wizards/web/WebWizard.py b/wizards/com/sun/star/wizards/web/WebWizard.py
index 241e776..a576ea8 100644
--- a/wizards/com/sun/star/wizards/web/WebWizard.py
+++ b/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.