Python 解析XML

<text >
    <font size="86" spacing="17" />
    率誕詭不經唐元奘法師遊西域十有七年撰
</text>
<text >
    率誕詭不經唐元奘法師遊西域十有七年撰
</text>

import xml.etree.ElementTree

tree=xml.etree.ElementTree.ElementTree(file="e:\\Python\\1.xml")
elem=tree.getroot()
file=open("e:\\a.txt",'w')
for a in elem.getiterator("text"):
    #print len(a._children)
    if len(a._children)>0:       
        for node in a:          
            if node.tail<> None:
                node.tail.encode('utf-8')
                file.write(node.tail.encode('utf-8'))
            #print xml.etree.ElementTree.iselement(node)
    else:
        if a.text<>None:
            file.write(a.text.encode('utf-8'))