如何使用python删除根标记并保留xml中的所有行标记

Question

我有以下 XML 文件。<root><catalog>   <book id="bk101">      <author>Gambardella, Matthew</author>      <title>XML Developer's Guide</title>      <genre>Computer</genre>      <price>44.95</price>      <publish_date>2000-10-01</publish_date>      <description>An in-depth look at creating applications with XML.</description>   </book></catalog><catalog>   <book id="bk102">      <author>Gambardella, Matthew</author>      <title>XML Developer's Guide</title>      <genre>Computer</genre>      <price>45.95</price>      <publish_date>2000-10-01</publish_date>      <description>An in-depth look at creating applications with XML.</description>   </book></catalog><catalog>   <book id="bk103">      <author>Gambardella, Matthew</author>      <title>XML Developer's Guide</title>      <genre>Computer</genre>      <price>46.95</price>      <publish_date>2000-10-01</publish_date>      <description>An in-depth look at creating applications with XML.</description>   </book></catalog></root>我想通过消除标记来创建另一个 XML。所以，我的新 XML 看起来像 -<catalog>   <book id="bk101">      <author>Gambardella, Matthew</author>      <title>XML Developer's Guide</title>      <genre>Computer</genre>      <price>44.95</price>      <publish_date>2000-10-01</publish_date>      <description>An in-depth look at creating applications with XML.</description>   </book></catalog><catalog>   <book id="bk102">      <author>Gambardella, Matthew</author>      <title>XML Developer's Guide</title>      <genre>Computer</genre>      <price>45.95</price>      <publish_date>2000-10-01</publish_date>      <description>An in-depth look at creating applications with XML.</description>   </book></catalog>下面是我的代码，我可以通过消除并保留所有必要的行标记来生成字节类。但最终无法将我的字节类转换为 xml 格式并出现以下错误：xml.etree.ElementTree.ParseError：文档元素后的垃圾：第 11 行，第 0 列你能帮忙吗？

Answer 1

根元素是 XML 的必需元素。

对于文本处理，也许我们可以做

import re

pattern = re.compile("<[/]{0,1}root>")

removed = re.sub(pattern, '', "<root>something</root>");

print(removed)

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