程序在文件中找不到xml数据

Question

My code (Python3) is supposed to print COLOR:Red│. When I run it, it doesn't give me an error message, it doesnt print anything. Here is my code and below is the xml file where the data is located:

import os, csv
from xml.etree import ElementTree

file_name = 'data.xml'
full_file = os.path.abspath(os.path.join('xml', file_name))
dom = ElementTree.parse(full_file)

attri = dom.findall('attribute')
lst = []

for c in attri:
    name = c.find('name').text
    value = c.find('value').text
    lst = (name + ':' + value)
    print(lst, end = "│") 



<?xml version="1.0"?>
<all>
<items>
<item>
<attributes>
<attribute>
<name>COLOR</name>
<value>Red</value>
</attributes>
</attribute>
</item>
</items>
</all>

Answer 1

attri = dom.findall('attribute') is returning no results.

The section of the docs titled Finding interesting elements notes that

Element.findall() finds only elements with a tag which are direct children of the current element.

But that

More sophisticated specification of which elements to look for is possible by using XPath .

The simplest fix would be to change your code to

for c in dom.findall('.//attribute'):
    name = c.find('.//name').text
    value = c.find('.//value').text
    print(name + ':' + value, end="│")

See Supported XPath syntax for more information.