如何将xml字符串转换为字典?

我有一个程序可以从套接字读取xml文档。我将xml文档存储在一个字符串中,我想将其直接转换为Python字典,就像在Django的simplejson库中一样。

举个例子:

str ="<?xml version="1.0" ?><person><name>john</name><age>20</age></person"

dic_xml = convert_to_dic(str)

然后dic_xml看起来像{'person' : { 'name' : 'john', 'age' : 20 } }

回答:

这是某人创建的一个很棒的模块。我已经使用过几次了。 http://code.activestate.com/recipes/410469-xml-as-

dictionary/

这是网站上的代码,以防万一链接损坏。

from xml.etree import cElementTree as ElementTree

class XmlListConfig(list):

def __init__(self, aList):

for element in aList:

if element:

# treat like dict

if len(element) == 1 or element[0].tag != element[1].tag:

self.append(XmlDictConfig(element))

# treat like list

elif element[0].tag == element[1].tag:

self.append(XmlListConfig(element))

elif element.text:

text = element.text.strip()

if text:

self.append(text)

class XmlDictConfig(dict):

'''

Example usage:

>>> tree = ElementTree.parse('your_file.xml')

>>> root = tree.getroot()

>>> xmldict = XmlDictConfig(root)

Or, if you want to use an XML string:

>>> root = ElementTree.XML(xml_string)

>>> xmldict = XmlDictConfig(root)

And then use xmldict for what it is... a dict.

'''

def __init__(self, parent_element):

if parent_element.items():

self.update(dict(parent_element.items()))

for element in parent_element:

if element:

# treat like dict - we assume that if the first two tags

# in a series are different, then they are all different.

if len(element) == 1 or element[0].tag != element[1].tag:

aDict = XmlDictConfig(element)

# treat like list - we assume that if the first two tags

# in a series are the same, then the rest are the same.

else:

# here, we put the list in dictionary; the key is the

# tag name the list elements all share in common, and

# the value is the list itself

aDict = {element[0].tag: XmlListConfig(element)}

# if the tag has attributes, add those to the dict

if element.items():

aDict.update(dict(element.items()))

self.update({element.tag: aDict})

# this assumes that if you've got an attribute in a tag,

# you won't be having any text. This may or may not be a

# good idea -- time will tell. It works for the way we are

# currently doing XML configuration files...

elif element.items():

self.update({element.tag: dict(element.items())})

# finally, if there are no child tags and no attributes, extract

# the text

else:

self.update({element.tag: element.text})

用法示例:

tree = ElementTree.parse('your_file.xml')

root = tree.getroot()

xmldict = XmlDictConfig(root)

//或者,如果要使用XML字符串:

root = ElementTree.XML(xml_string)

xmldict = XmlDictConfig(root)

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