Python ElementTree：解析字符串并获取ElementTree实例 [英] Python ElementTree: Parsing a string and getting ElementTree instance

问题描述

我有一个包含从http请求返回的XML数据的字符串。

I have a string containing XML data that is returned from an http request.

我正在使用 ElementTree 解析数据，然后我要递归搜索元素。

I am using ElementTree to parse the data, and I want to then search recursively for an element.

根据此问题，我只能使用 result.findall（）如果结果的类型为 ElementTree 而不是类型 Element 。

According to this question, I can only search recursively with result.findall() if result is of type ElementTree rather than type Element.

现在 xml.etree.ElementTree.fromstring（）用于解析字符串，返回 Element 对象，而 xml.etree.ElementTree.parse（）用于解析 ，返回 ElementTree 对象。

Now xml.etree.ElementTree.fromstring() , used to parse the string, returns an Element object, while xml.etree.ElementTree.parse(), used to parse a file, returns an ElementTree object.

然后我的问题是：如何解析字符串并获取 ElementTree 实例？（不带任何m就像写一个临时文件一样）

My question is then: How can I parse the string and get an ElementTree instance? (without any madness like writing to a temporary file)

推荐答案

使用 ElementTree.fromstring（）您得到的基本上是树的根，因此，如果创建像这样的新树，则 ElementTree.ElementTree（root）

When you use ElementTree.fromstring() what you're getting back is basically the root of the tree, so if you create a new tree like this ElementTree.ElementTree(root) you'll get you're looking for.

因此，更清楚地说：

from xml.etree import ElementTree
tree = ElementTree.ElementTree(ElementTree.fromstring(<your_xml_string>))

或：

from xml.etree.ElementTree import fromstring, ElementTree
tree = ElementTree(fromstring(<your_xml_string>))

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