CVS: Products/ParsedXML/DOM - Core.py:1.136

Update of /cvs-repository/Products/ParsedXML/DOM
In directory cvs.zope.org:/tmp/cvs-serv16308

Modified Files:
	Core.py 
Log Message:
Fixed a bug in previousSibling/nextSibling; as Node can be false you
cannot rely on a 'if node:' test to check for non-None-ness.


=== Products/ParsedXML/DOM/Core.py 1.135 => 1.136 ===
     def _get_nextSibling(self):
         node = self._getSiblingInfo()[1]
-        if node:
+        if node is not None:
             return node.__of__(self.parentNode)
     nextSibling = ComputedAttribute(_get_nextSibling, 1)
 
     def _get_previousSibling(self):
         node = self._getSiblingInfo()[0]
-        if node:
+        if node is not None:
             return node.__of__(self.parentNode)
     previousSibling = ComputedAttribute(_get_previousSibling, 1)