Python ElementTree - Select 基于属性值的嵌套 xml 元素

Question

我正在尝试 select 基于属性值的嵌套元素

from xml.etree import ElementTree as ET

xml = '''<?xml version="1.0" encoding="UTF-8"?>
    <Report>
        <h1>
            <h2>
                <Element name='Bob' age='32' title='President'></Element>
                <Element name='Sue' age='25' title='Vice-President'></Element>
                <Element name='Mary' age='44' title='Secretary'></Element>
            </h2>
        </h1>
    </Report>'''

root = ET.fromstring(xml)

element = root.findall("//*[@title='President']")

但是我得到以下元素变量赋值错误

SyntaxError: cannot use absolute path on element

如何仅提取 President 元素的属性数据？

Answer 1

你非常亲密:-)

下面的作品 - 看看 xpath 中的点..

xml = '''<?xml version="1.0" encoding="UTF-8"?>
    <Report>
        <h1>
            <h2>
                <Element name='Bob' age='32' title='President'></Element>
                <Element name='Sue' age='25' title='Vice-President'></Element>
                <Element name='Mary' age='44' title='Secretary'></Element>
            </h2>
        </h1>
    </Report>'''

root = ET.fromstring(xml)
elements = root.findall(".//*[@title='President']")
print(elements)

Answer 2

这是你要找的吗？

from xml.etree import ElementTree as ET

xml = '''<?xml version="1.0" encoding="UTF-8"?>
    <Report>
        <h1>
            <h2>
                <Element name='Bob' age='32' title='President'></Element>
                <Element name='Sue' age='25' title='Vice-President'></Element>
                <Element name='Mary' age='44' title='Secretary'></Element>
            </h2>
        </h1>
    </Report>'''


root = ET.fromstring(xml)
elements = root.findall(".//*[@title='President']")
for i in elements:
    print(i.attrib['name'], i.attrib['age'], i.attrib['title'])