Python如何从XML文本节点中去除空格 [英] Python how to strip white-spaces from xml text nodes

问题描述

我有一个xml文件，如下所示

I have a xml file as follows

<Person>
<name>

 My Name

</name>
<Address>My Address</Address>
</Person>

该标记具有额外的新行，是否有任何快速的Python方式来修剪它并生成新的xml.

The tag has extra new lines, Is there any quick Pythonic way to trim this and generate a new xml.

我发现了这一点，但它只修剪了标签之间的值，而不是值 https://skyl.org/log/post/skyl/2010/04/remove-insignificant-whitespace-from-xml-string-with-python/

I found this but it trims only which are between tags not the value https://skyl.org/log/post/skyl/2010/04/remove-insignificant-whitespace-from-xml-string-with-python/

更新1-处理以下xml，该xml在<name>标记中有尾巴空格

Update 1 - Handle following xml which has tail spaces in <name> tag

<Person>
<name>

 My Name<shortname>My</short>

</name>
<Address>My Address</Address>
</Person>

以上两种xml都可接受的答案句柄

Accepted answer handle above both kind of xml's

更新2-我在下面的答案中发布了我的版本，我正在使用它删除所有类型的空格并使用xml编码在文件中生成漂亮的xml

https://stackoverflow.com/a/19396130/973699

推荐答案

使用lxml，您可以遍历所有元素并检查其是否包含文本到strip():

With lxml you can iterate over all elements and check if it has text to strip():

from lxml import etree

tree = etree.parse('xmlfile')
root = tree.getroot()

for elem in root.iter('*'):
    if elem.text is not None:
        elem.text = elem.text.strip()

print(etree.tostring(root))

它产生:

<Person><name>My Name</name>
<Address>My Address</Address>
</Person>

---

更新也要剥离tail文本:

---

UPDATE to strip tail text too:

from lxml import etree

tree = etree.parse('xmlfile')
root = tree.getroot()

for elem in root.iter('*'):
    if elem.text is not None:
        elem.text = elem.text.strip()
    if elem.tail is not None:
        elem.tail = elem.tail.strip()

print(etree.tostring(root, encoding="utf-8", xml_declaration=True))

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