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'''
Walk through a namespace-compliant XML file and print out the
the namespaces of all elements and attributes in document order
'''
from xml.dom.ext.reader import PyExpat
from xml.dom.NodeFilter import NodeFilter
def TraceNs(doc):
snit = doc.createNodeIterator(doc, NodeFilter.SHOW_ELEMENT, None, 0)
curr_elem = snit.nextNode()
while curr_elem:
print "Current Element", curr_elem.nodeName
#FIXME: put a GetDefaultNs method into Ext
#ns = Namespace.GetDefaultNs(curr_elem)
#print "\tDefault NS\t", ns
print "\t"+curr_elem.nodeName+"\t\t", curr_elem.namespaceURI
header_printed = 0
for k in curr_elem.attributes.keys():
if curr_elem.attributes[k].namespaceURI:
if not header_printed:
header_printed = 1
print "\tAttributes"
print "\t\t"+curr_elem.attributes[k].nodeName+"\t", curr_elem.attributes[k].namespaceURI
print
curr_elem = snit.nextNode()
if __name__ == "__main__":
import sys
reader = PyExpat.Reader()
doc = reader.fromUri(sys.argv[1])
TraceNs(doc)
reader.releaseNode(doc)
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