BeautifulSoup如何找到XML标签？

Question

我有以下XML：

<xml version="1.0" encoding="ISO-8859-1" standalone="yes"?>
<nite:root nite:id="ES2002a.topic" 
xmlns:nite="http://nite.sourceforge.net/">
<topic nite:id="ES2002a.topic.vkaraisk.1" other_description="introduction of participants and their roles">
  <nite:pointer role="scenario_topic_type"  href="default-topics.xml#id(top.4)"/>
  <nite:child href="ES2002a.B.words.xml#id(ES2002a.B.words0)..id(ES2002a.B.words71)"/>
  <nite:child href="ES2002a.D.words.xml#id(ES2002a.D.words0)..id(ES2002a.D.words3)"/>
  <nite:child href="ES2002a.A.words.xml#id(ES2002a.A.words0)..id(ES2002a.A.words12)"/>
  <nite:child href="ES2002a.B.words.xml#id(ES2002a.B.words72)..id(ES2002a.B.words73)"/>
  <nite:child href="ES2002a.D.words.xml#id(ES2002a.D.words4)..id(ES2002a.D.words11)"/>
  <nite:child href="ES2002a.C.words.xml#id(ES2002a.C.words0)..id(ES2002a.C.words7)"/>
  <nite:child href="ES2002a.D.words.xml#id(ES2002a.D.words12)..id(ES2002a.D.words13)"/>
</topic>

当我运行以下命令时，

[tag.name for tag in soup.find_all()]

我得到输出：

['html',
 'body',
 'nite:root',
 'topic',
 'nite:pointer',
 'nite:child',
 'nite:child',
 'topic']

但是，当我尝试将find all函数用于night：root，night：pointer，night：child时。 它返回一个空列表：

soup.find_all("nite:pointer")

返回：

[]

Answer 1

经过进一步的研究，我发现

soup.find_all({"nite:pointer"})

返回我正在寻找的东西