没有root的Python XML解析 [英] Python XML Parsing without root

问题描述

我想解析一个相当大的类似xml的文件，其中没有任何根元素.该文件的格式为:

I wanted to parse a fairly huge xml-like file which doesn't have any root element. The format of the file is:

<tag1>
<tag2>
</tag2>
</tag1>

<tag1>
<tag3/>
</tag1>

我尝试使用Element-Tree，但返回了无根"错误.还有其他可用于解析此文件的python库吗?提前致谢！:)

I tried using Element-Tree but it returned a "no root" error. Is there any other python library which can be used for parsing this file? Thanks in advance! :)

PS:我尝试添加一个额外的标签来包装整个文件，然后使用Element-Tree对其进行解析.但是，我想使用一些更有效的方法，无需更改原始xml文件.

PS: I tried adding an extra tag to wrap the entire file and then parse it using Element-Tree. However, I would like to use some more efficient method, in which I would not need to alter the original xml file.

推荐答案

ElementTree.fromstringlist accepts an iterable (that yields strings).

与 itertools.chain :

import itertools
import xml.etree.ElementTree as ET
# import xml.etree.cElementTree as ET

with open('xml-like-file.xml') as f:
    it = itertools.chain('<root>', f, '</root>')
    root = ET.fromstringlist(it)

# Do something with `root`
root.find('.//tag3')

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