xml.etree.ElementTree.Element'对象没有属性'write' [英] xml.etree.ElementTree.Element' object has no attribute 'write'

问题描述

我想读取一个XML字符串，对其进行编辑并将其另存为XML文件.

I want to read a XML string, edit it and save it as a XML file.

但是，当我执行 .write()

我发现，当您使用 ElementTree.fromstring(string)读取XML字符串时，它将创建一个 ElementTree.Element 而不是一个 ElementTree 本身.元素没有写方法，但是元素树有.

I found out that when you read an XML string using ElementTree.fromstring(string) it will create an ElementTree.Element and not an ElementTree itself. An Element has no write method but the ElementTree does.

如何将元素写入XML文件?或者如何创建ElementTree并将其添加到ElementTree中，然后使用 .write 方法?

How can I write an Element to a XML file? Or how can I create an ElementTree and add my Element to that and then use the .write method?

推荐答案

我发现，当您使用 ElementTree.fromstring(string)读取xml字符串时，它实际上将创建 ElementTree.Element 而不是 ElementTree 本身.

I found out that when you read a xml string using ElementTree.fromstring(string) it will actually create an ElementTree.Element and not a ElementTree itself.

是的，您可以返回顶级元素(也称为文档元素").

Yes, you get the top-level element back (also called the "document element").

元素没有 write 方法，但是 ElementTree 有.

ElementTree构造函数签名如下:

The ElementTree constructor signature goes like this:

class xml.etree.ElementTree.ElementTree(element=None, file=None)

因此非常简单:

import xml.etree.ElementTree as ET

doc = ET.fromstring("<test>test öäü</test>")

tree = ET.ElementTree(doc)
tree.write("test.xml", encoding="utf-8")

在编写XML文件时，始终应指定编码.大多数情况下，UTF-8是最佳选择.

You always should specify the encoding when writing an XML file. Most of the time, UTF-8 is the best choice.

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