[Libvirt-cim] [PATCH] [TEST] add a try..except to get_value_xpath()

# HG changeset patch # User Zhengang Li <lizg(a)cn.ibm.com&gt; # Date 1207733009 -28800 # Node ID 87913147308d5075130dcae5b5648cc3f0158681 # Parent 262153788503c8b10c76c77719bba081df9a7b88 [TEST] add a try..except to get_value_xpath() A 'None' return is more elegant than a pure exception error. Signed-off-by: Zhengang Li <lizg(a)cn.ibm.com&gt; diff -r 262153788503 -r 87913147308d suites/libvirt-cim/lib/XenKvmLib/vxml.py --- a/suites/libvirt-cim/lib/XenKvmLib/vxml.py Tue Apr 08 17:58:44 2008 +0530 +++ b/suites/libvirt-cim/lib/XenKvmLib/vxml.py Wed Apr 09 17:23:29 2008 +0800 @@ -115,7 +115,12 @@ class XMLClass: return self.xdoc.toprettyxml() def get_value_xpath(self, xpathStr): - node = self.get_node(xpathStr) + try: + node = self.get_node(xpathStr) + except LoopUpError: + raise Exception('Zero or multiple node found') + return None + if node.nodeType == Node.ATTRIBUTE_NODE: return node.value if node.nodeType == Node.TEXT_NODE: