python - 在 Python 中解析包含 XML 条目的文本/csv 文件

Question

我有一个包含 XML 条目的 csv 文件。假设每个 XML 条目都以 <entry> 开头并以 </entry> 结尾。我的文件中有数千个这样的条目。每个 XML 条目都由嵌套的 XML 元素组成。

我需要提取每个条目的一些元素并通过Python将它们保存到另一个文件中。以下是一个 XML 条目的示例。想象一下我想要提取每个条目的元素。你能告诉我如何在Python中做到这一点吗？我是 Python 编程的初学者。

"<entry xmlns=""http://www.w3.org/2005/Atom"" xmlns:gnip=""http://www.gnip.com/schemas/2010"">
  <id>tag:search.twitter.com,2005:157796632933576704</id>
  <published>2012-01-13T12:10:23+00:00</published>
  <updated>2012-01-13T12:10:23+00:00</updated>
  <summary type=""html"">RT @sprice54: If you rearrange the words ""Debit card"" you can spell ""Bad Credit""</summary>
  <link rel=""alternate"" type=""text/html"" href=""http://twitter.com/GCordivari/statuses/157796632933576704""/>
  <source>
    <link rel=""self"" type=""application/json"" href=""https://stream.twitter.com/1/statuses/filter.json""/>
    <title>Twitter - Stream - Track</title>
    <updated>2012-01-13T12:10:25Z</updated>
  </source>
  <service:provider xmlns:service=""http://activitystrea.ms/service-provider"">
    <name>Twitter</name>
    <uri>http://www.twitter.com/</uri>
    <icon/>
  </service:provider>
  <contributor>
    <name>Steve Price</name>
    <uri>http://www.twitter.com/sprice54</uri>
  </contributor>
  <link rel=""via"" type=""text/html"" href=""http://twitter.com/sprice54/statuses/157748462321012736""/>
  <title>George Cordivari shared: Steve Price posted a note on Twitter</title>
  <category term=""StatusShared"" label=""Status Shared""/>
  <category term=""NoteShared"" label=""Note Shared""/>
  <activity:verb xmlns:activity=""http://activitystrea.ms/spec/1.0/"">http://activitystrea.ms/schema/1.0/share</activity:verb>
  <activity:object xmlns:activity=""http://activitystrea.ms/spec/1.0/"">
    <activity:object-type>http://activitystrea.ms/schema/1.0/note</activity:object-type>
    <id>object:search.twitter.com,2005:157796632933576704</id>
    <content type=""html"">RT @sprice54: If you rearrange the words ""Debit card"" you can spell ""Bad Credit""</content>
    <link rel=""alternate"" type=""text/html"" href=""http://twitter.com/GCordivari/statuses/157796632933576704""/>
  </activity:object>
  <author>
    <name>George Cordivari</name>
    <uri>http://www.twitter.com/GCordivari</uri>
  </author>
  <activity:author xmlns:activity=""http://activitystrea.ms/spec/1.0/"">
    <activity:object-type>http://activitystrea.ms/schema/1.0/person</activity:object-type>
    <gnip:friends xmlns:gnip=""http://www.gnip.com/schemas/2010"" followersCount=""37"" followingCount=""61""/>
    <link rel=""alternate"" type=""text/html"" length=""0"" href=""http://www.twitter.com/GCordivari""/>
    <link rel=""avatar"" href=""http://a0.twimg.com/profile_images/1670548060/274805_1268643462_1179159089_n_normal.jpg""/>
    <id>http://www.twitter.com/GCordivari</id>
  </activity:author>
  <activity:actor xmlns:activity=""http://activitystrea.ms/spec/1.0/"">
    <activity:object-type>http://activitystrea.ms/schema/1.0/person</activity:object-type>
    <gnip:friends xmlns:gnip=""http://www.gnip.com/schemas/2010"" followersCount=""37"" followingCount=""61""/>
    <gnip:stats xmlns:gnip=""http://www.gnip.com/schemas/2010"" activityCount=""370"" upstreamId=""id:twitter.com:427031045""/>
    <link rel=""alternate"" type=""text/html"" length=""0"" href=""http://www.twitter.com/GCordivari""/>
    <link rel=""avatar"" href=""http://a0.twimg.com/profile_images/1670548060/274805_1268643462_1179159089_n_normal.jpg""/>
    <id>http://www.twitter.com/GCordivari</id>
    <os:location xmlns:os=""http://ns.opensocial.org/2008/opensocial"">Drexel Hell</os:location>
    <os:aboutMe xmlns:os=""http://ns.opensocial.org/2008/opensocial"">This is the way I live. #CirocInMyCupIDGAF #CloudNine  #FollowMeLikeTheLeader </os:aboutMe>
  </activity:actor>
  <gnip:twitter_entities xmlns:gnip=""http://www.gnip.com/schemas/2010"">
    <user_mentions>
      <user_mention start=""3"" end=""12"">
        <id>255347428</id>
        <name>Steve Price</name>
        <screen_name>sprice54</screen_name>
      </user_mention>
    </user_mentions>
  </gnip:twitter_entities>
  <gnip:matching_rules>
    <gnip:matching_rule rel=""inferred"">""debit card""</gnip:matching_rule>
  </gnip:matching_rules>
</entry>"

Answer 1

使用csv解析 csv 的模块以及类似 elementtree 的内容解析 xml 字段。

如果您的 xml 数据与 RSS 兼容，请查看 feedparser .