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Editorial Team
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Asked: 2026-05-31T18:41:36+00:00

I have an element that have items and a tag. The element can contain

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I have an element that have items and a tag. The element can contain more elements which also have items and a tag, and those elements can also have items and a tag. Beforehand I don’t know how many ‘nested’ elements are in the first element.

I want to save the tag and items in a dictionary with the element as key, and if the element has a ‘nested’ element I want to save that that element and its information in the same dictionary entry as its ‘parent element’.

The code that I have so far works only if the first element has a nested element, and the nested element does not have another nested element in it. This is the code:

def getAllNestedElementInformation(element, nestedDict=None):
    infoDict = {'tagName':element.tag}
    infoDict.update(getItems(element))

    if nestedDict == None:
        nestedDict = infoDict
    else:
        nestedDict['nestedElement'][element] = infoDict
        print nestedDict

    for nestedElement in element:
        nestedDict.update({'nestedElement':collections.defaultdict(dict)})
        getAllNestedElementInformation(nestedElement, nestedDict=nestedDict)

I want to have 

 {'name':'scan', 'nestedElement':{'name':'scanwindow', 'nestedElement':{'name:'cvParam'}}}

but I don’t come further than 

{'name':'scan', 'nestedElement':{'name:'scanwindow'}}

because I don’t know how to map the next nestedElement in the the ‘nestedElement’ dict.

To give an example of what I have now and what I want to have, when I print nestedDict I get:

{'index': '0', 'nestedElement': {<Element 'scan' at 0x8068180>: {'tagName': 'scan'}}, 'tagName': 'spectrum', 'id': '1'}
{'index': '0', 'nestedElement': {<Element 'cvParam' at 0x80682a0>: {'name': 'scan start time', 'unitName': 'second', 'tagName': 'cvParam', }}, 'tagName': 'spectrum', 'id': '1'}

And I want to have:

{'index': '0', 'nestedElement': {<Element 'scan' at 0x8068180>: 'tagName': 'scan', 'nestedElement: {'name': 'scan start time', 'unitName': 'second', 'tagName': 'cvParam', }}, 'tagName': 'spectrum', 'id': '1'}
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1 Answer

  1. Editorial Team

    Had to save the return value of getAllNestedElementInformation in a dictionary. Just incase someone want to know: this is what I changed my code into:

    def getAllNestedElementInformation(element):
    infoDict = collections.defaultdict(dict)
    infoDict[element] = {'tagName':element.tag}
    infoDict[element].update(getItems(element))
    if element.text != None:
        if element.text.strip() != '':
            infoDict[element].update({'content':element.text})

    for nestedElement in element:
        infoDict[element]['nestedElement'] = getAllNestedElementInformation(nestedElement)  

    return infoDict
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