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 repattern = re.compile("<[/]{0,1}root>")removed = re.sub(pattern, '', "<root>something</root>");print(removed)?