Question

我有一份XML文件,我读到Avre。我想对XML案卷作一些改动,并改写。

我的守则是:

from xml.dom.minidom import *

filename = "file.xml"

dom = xml.dom.minidom.parse(filename)

dicts = dom.getElementsByTagName("dict")

for dict in dictList:  
    keys = dict.getElementsByTagName("key")
    for key in keys:
        keyCData = key.firstChild.wholeText
        if keyCData == "kind":
            print keyCData #prints "kind"
            key.firstChild.wholeText = "new text" 
            print key.firstChild.wholeText #prints "new text"

f = open("temp.xml",  w )
dom.writexml(f)
f.close()

当我打开“temp.xml”看望时,我的“钥匙”标签的所有要素仍然具有“实物”而不是“新案文”的CData。因此,我如何把新数据编成档案?

Answer 1

替换

key.firstChild.wholeText = "new text"

或者

key.firstChild.replaceWholeText("new text")

或

key.firstChild.data = "new text"

The key here is that xml.dom.minidom.Text.wholeText is a data descript或, meant to be used m或e like a function than like an attribute. In fact, it collects data from nearby text and cdata nodes, in addition to its own data. Unf或tunately, its setter doesn t seem to be getting called, so by writing to wholeText, you are overriding the function. The writexml() implementation, however, only looks at the data attribute, not wholeText.

This could be seen as a bug. In fact, someone could probably link replaceWholeText() as the setter f或 the wholeText property, but it may have to bypass the magic that the module uses to w或k with older versions of Python.

Answer 2

你们必须做的是代之以。

from xml.dom.minidom import *

filename = "file.xml"

dom = xml.dom.minidom.parse(filename)

dictList = dom.getElementsByTagName("dict")

for dict in dictList:  
    keys = dict.getElementsByTagName("key")
    for key in keys:
        keyCData = key.firstChild.wholeText.strip() // clean
        if keyCData == "kind":
            new_text = dom.createTextNode( new text ) // new textnode
            key.replaceChild(new_text, key.firstChild) // replace old

f = open("temp.xml",  w )
dom.writexml(f)
f.close()

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