XML ElementTree索引标记

Question

我有一个XML文件：

<sentence id="en_BlueRibbonSushi_478218345:2">
   <text>It has great sushi and even better service.</text>
</sentence>
<sentence id="en_BlueRibbonSushi_478218345:3">
   <text>The entire staff was extremely accomodating and tended to my every need.</text>
</sentence>
<sentence id="en_BlueRibbonSushi_478218345:4">
   <text>I&apos;ve been to this restaurant over a dozen times with no complaints to date.</text>
</sentence>

使用xmlementtree，我想插入一个具有属性category=的标记{}。假设我有一个字符列表list = ['a', 'b', 'c']，是否可以将它们递增地分配给每个文本，因此我有：

^{pr2}$

我知道我可以使用句子id属性，但这需要对代码进行大量的重新构造。基本上，我希望能够索引每个句子条目，以与我的列表索引对齐。在

Answer 1

您可以使用SubElement工厂函数将元素添加到树中。 假设XML数据在一个名为data的变量中，这将向文档树中添加元素：

import xml.etree.ElementTree as ET
tree = ET.XML(data)
for elem, category in zip(tree.findall('sentence'), ['a', 'b', 'c']):
    Opinion  = ET.SubElement(elem, 'Opinion')
    Opinion.set('category', category)

ET.dump(tree)  # prints the tree; tree.write('output.xml') is another option