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• 如何取代在埃丽塔地区的儿童部分
原标题:How can i do replace a child element(s) in ElementTree

我想根据一些标准,将儿童内容从一个树改为另一个树。 我能够利用“谅解吗? 但是,我们如何取代ElementTree的内容?

最佳回答

页: 1 页: 1 Element 。

即便在您打电话到ElementTree.find(时,它只是一个简短的指南>getroot(>find()。

因此,你确实需要:

  • extract the parent element
  • use comprehension (or whatever you like) on that parent element

如果你的目标是一个根本的子要素(电话<编码>getroot(<><>/code>),否则就很容易提取母体元素。

问题回答

Unlike the DOM, etree has no explicit multi-document functions. However, you should be able to just move elements freely from one document to another. You may want to call _setroot after doing so.

By calling insert and then remove, you can replace a node in a document.

I m new to python, but I ve found a dodgy way to do this:

投入文件input1.xml:

<?xml version="1.0" encoding="UTF-8"?>
<root>
    <import ref="input2.xml" />
    <name awesome="true">Chuck</name>
</root>

投入文件input2.xml:

<?xml version="1.0" encoding="UTF-8"?>
<foo>
    <bar>blah blah</bar>
</foo>

甲型六氯环己烷:

import os
import xml.etree.ElementTree as ElementTree

def getElementTree(xmlFile):
    print "-- Processing file:  %s  in:  %s " %(xmlFile, os.getcwd())
    xmlFH = open(xmlFile,  r )
    xmlStr = xmlFH.read()
    et = ElementTree.fromstring(xmlStr)
    parent_map = dict((c, p) for p in et.getiterator() for c in p)
    # ref: https://stackoverflow.com/questions/2170610/access-elementtree-node-parent-node/2170994
    importList = et.findall( .//import[@ref] )
    for importPlaceholder in importList:
        old_dir = os.getcwd()
        new_dir = os.path.dirname(importPlaceholder.attrib[ ref ])
        shallPushd = os.path.exists(new_dir)
        if shallPushd:
            print "  pushd: %s" %(new_dir)
            os.chdir(new_dir) # pushd (for relative linking)
        # Recursing to import element from file reference
        importedElement = getElementTree(os.path.basename(importPlaceholder.attrib[ ref ]))

        # element replacement
        parent = parent_map[importPlaceholder]
        index = parent._children.index(importPlaceholder)
        parent._children[index] = importedElement

        if shallPushd:
            print "  popd: %s" %(old_dir)
            os.chdir(old_dir) # popd

    return et

xmlET = getElementTree("input1.xml")
print ElementTree.tostring(xmlET)

产出:

-- Processing file:  input1.xml  in:  C:	emp	esting 
-- Processing file:  input2.xml  in:  C:	emp	esting 
<root>
    <foo>
    <bar>blah blah</bar>
</foo><name awesome="true">Chuck</name>
</root>

总结如下:





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