问题描述
我有一个 XML 文件,其中包含许多具有相同属性的不同节点.
I have an XML file which has a lot of different nodes with the same attribute.
我想知道是否可以使用 Python 和任何其他包(如 minidom 或 ElementTree)找到所有这些节点.
I was wondering if it's possible to find all these nodes using Python and any additional package like minidom or ElementTree.
推荐答案
可以使用内置的xml.etree.ElementTree 模块.
You can use built-in xml.etree.ElementTree module.
如果您希望所有元素都具有特定属性而不考虑属性值,则可以使用 xpath 表达式:
If you want all elements that have a particular attribute regardless of the attribute values, you can use an xpath expression:
//tag[@attr]
或者,如果您关心价值观:
Or, if you care about values:
//tag[@attr="value"]
示例(使用 <代码>findall() 方法):
Example (using findall() method):
import xml.etree.ElementTree as ET data = """ <parent> <child attr="test">1</child> <child attr="something else">2</child> <child other_attr="other">3</child> <child>4</child> <child attr="test">5</child> </parent> """ parent = ET.fromstring(data) print [child.text for child in parent.findall('.//child[@attr]')] print [child.text for child in parent.findall('.//child[@attr="test"]')]
打印:
['1', '2', '5'] ['1', '5']