使用ElementTree在Python中处理XML [英] Processing XML in Python with ElementTree

问题描述

我对ElementTree.iter()有问题.

I have a problem with ElementTree.iter().

因此，我在此链接中尝试了此示例:

So I tried this example in this link : http://eli.thegreenplace.net/2012/03/15/processing-xml-in-python-with-elementtree/

这就是我尝试过的:

import elementtree.ElementTree as ET
tree = ET.parse('XML_file.xml')
root = tree.getroot()
for elem in tree.iter():
    print elem.tag, elem.attrib

我得到这个错误AttributeError:ElementTree实例没有属性'iter'

And I get this error AttributeError: ElementTree instance has no attribute 'iter'

其他信息:我的Python版本是2.4我单独安装了elementtree.我提供的链接中的其他示例正在安装的Python中运行.仅ElementTree.iter()无法正常工作.预先感谢您的所有帮助.干杯！

Additional info: The version of my Python is 2.4 I separately installed elementtree. Other examples in the link that I provide is working in my Python installed. Only the ElementTree.iter() is not working. Thanks in advance for all of your help. Cheers!

推荐答案

在您的情况下，应将.iter()替换为.getiterator()，并且可能应将其用于root元素，而不是树(但是我不确定，因为我手头没有Python 2.4和模块).

In your case, you should replace the .iter() by .getiterator(), and you possibly should call it for the root element, not for the tree (but I am not sure because I do not have the Python 2.4 and the module at my hands).

import elementtree.ElementTree as ET
tree = ET.parse('XML_file.xml')
root = tree.getroot()
for elem in root.getiterator():
    print elem.tag, elem.attrib

这是Python 2.7中不推荐使用的较早功能.对于Python 2.7，.iter()应该与内置模块一起使用:

This is the older functionality that was deprecated in Python 2.7. For Python 2.7, the .iter() should work with the built-in module:

import xml.etree.ElementTree as ET
tree = ET.parse('XML_file.xml')
root = tree.getroot()
for elem in root.iter():
    print elem.tag, elem.attrib

注意事项:标准模块还支持通过元素节点的直接迭代(即，没有.iter()或任何所谓的方法，仅是for elem in root:).它不同于.iter() －仅通过直接后代节点.在较早的版本中，实现了与.getchildren()类似的功能.

A side note: the standard module supports also direct iteration through the element node (i.e. no .iter() or whatever method called, just the for elem in root:). It differs from .iter() -- it goes only through the immediate descendant nodes. Similar functionality is implemented in the older versions as .getchildren().

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