如何通过python从一个xml中提取多个xml节(how to extract section to multiple xml from one xml via python)

如何通过python从一个xml中提取多个xml节(how to extract section to multiple xml from one xml via python)

source.xml

<root xxx> <test> <ppp> <ppp> xxx </ppp> <ppp> yyy </ppp> ... ... </ppp> </test>

ppp中有很多我想将它提取到单个文件：

1.XML：

<ppp> xxx </ppp>

2.XML

<ppp> yyy </ppp>

3.xml等

我知道它可以通过xml.etree.ElementTree来实现请给我一个例子，令人困惑的部分是它有双ppp。

source.xml

<root xxx> <test> <ppp> <ppp> xxx </ppp> <ppp> yyy </ppp> ... ... </ppp> </test>

there are many among ppp I want to extract it to single files :

1.xml:

<ppp> xxx </ppp>

2.xml

<ppp> yyy </ppp>

3.xml and so on

I know it can be achieved by xml.etree.ElementTree pls kindly give me an example for this, the confusing part is it has double ppp.

最满意答案

使用xml.etree.ElementTree模块的解决方案：

import xml.etree.ElementTree as ET # to load xml contents from file use the following: # tree = ET.parse('source.xml') # root = tree.getroot() source = '''<?xml version="1.0"?> <root> <test> <ppp> <ppp> xxx </ppp> <ppp> yyy </ppp> </ppp> </test> </root> ''' root = ET.fromstring(source) for k, ppp in enumerate(root.findall('./test/ppp/ppp')): tree = ET.ElementTree(ppp) tree.write(str(k+1) + '.xml')

root.findall('./test/ppp/ppp') - 按路径查找所有匹配的元素

tree.write() - 将元素树作为XML写入文件

上面的代码将解析所需的元素并将它们分别写入1.xml和2.xml文件

https://docs.python.org/3/library/xml.etree.elementtree.html

The solution using xml.etree.ElementTree module:

import xml.etree.ElementTree as ET # to load xml contents from file use the following: # tree = ET.parse('source.xml') # root = tree.getroot() source = '''<?xml version="1.0"?> <root> <test> <ppp> <ppp> xxx </ppp> <ppp> yyy </ppp> </ppp> </test> </root> ''' root = ET.fromstring(source) for k, ppp in enumerate(root.findall('./test/ppp/ppp')): tree = ET.ElementTree(ppp) tree.write(str(k+1) + '.xml')

root.findall('./test/ppp/ppp') - finds all matching elements by path

tree.write() - writes the element tree to a file, as XML

The above code will parse the needed elements and write them into files 1.xml and 2.xml respectively

https://docs.python.org/3/library/xml.etree.elementtree.html