使用 ElementTree 在 XML 文件末尾找不到元素

Question

Python 这里是新手。我只是在练习从 XML 文件中提取某些元素。我正在浏览这个 Datacamp tutorial，并尝试解析教程开头提供的“电影”XML 文件。

看起来像这样：

<?xml version="1.0"?>
<collection>
    <genre category="Action">
        <decade years="1980s">
            <movie favorite="True" title="Indiana Jones: The raiders of the lost Ark">
                <format multiple="No">DVD</format>
                <year>1981</year>
                <rating>PG</rating>
                <description>
                'Archaeologist and adventurer Indiana Jones 
                is hired by the U.S. government to find the Ark of the 
                Covenant before the Nazis.'
                </description>
            </movie>
               <movie favorite="True" title="THE KARATE KID">
               <format multiple="Yes">DVD,Online</format>
               <year>1984</year>
               <rating>PG</rating>
               <description>None provided.</description>
            </movie>
            <movie favorite="False" title="Back 2 the Future">
               <format multiple="False">Blu-ray</format>
               <year>1985</year>
               <rating>PG</rating>
               <description>Marty McFly</description>
            </movie>
        </decade>
        <decade years="1990s">
            <movie favorite="False" title="X-Men">
               <format multiple="Yes">dvd, digital</format>
               <year>2000</year>
               <rating>PG-13</rating>
               <description>Two mutants come to a private academy for their kind whose resident superhero team must 
               oppose a terrorist organization with similar powers.</description>
            </movie>
            <movie favorite="True" title="Batman Returns">
               <format multiple="No">VHS</format>
               <year>1992</year>
               <rating>PG13</rating>
               <description>NA.</description>
            </movie>
               <movie favorite="False" title="Reservoir Dogs">
               <format multiple="No">Online</format>
               <year>1992</year>
               <rating>R</rating>
               <description>WhAtEvER I Want!!!?!</description>
            </movie>
        </decade>    
    </genre>

    <genre category="Thriller">
        <decade years="1970s">
            <movie favorite="False" title="ALIEN">
                <format multiple="Yes">DVD</format>
                <year>1979</year>
                <rating>R</rating>
                <description>"""""""""</description>
            </movie>
        </decade>
        <decade years="1980s">
            <movie favorite="True" title="Ferris Bueller's Day Off">
                <format multiple="No">DVD</format>
                <year>1986</year>
                <rating>PG13</rating>
                <description>Funny movie about a funny guy</description>
            </movie>
            <movie favorite="FALSE" title="American Psycho">
                <format multiple="No">blue-ray</format>
                <year>2000</year>
                <rating>Unrated</rating>
                <description>psychopathic Bateman</description>
            </movie>
        </decade>
    </genre>

我明白我必须补充 </collection> 在末尾以便解析文件。但是，我仍然抛出错误： xml.etree.ElementTree.ParseError：未找到元素：第 74 行，第 12 列

当运行代码

import os
import pandas as pd
import xml.etree.ElementTree as ET
tree = ET.parse('movies.xml')

最后一个“流派”元素是否关闭错误？我不确定为什么我无法解析文件。感谢任何帮助 - 谢谢！

Answer 1

在导入包之后和解析 XML 文件之前不必要的 os 更改目录语句。

引发错误的代码：

import os
import pandas as pd
import xml.etree.ElementTree as ET
os.chdir('filepath')
tree = ET.parse('movies.xml')
root = tree.getroot()

删除 os.chdir 语句后，它的解析没有错误。

使用 ElementTree 在 XML 文件末尾找不到元素

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