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xmltodict is another simple library that is dedicated to turning XML into JSON.
The following is a simple example XML file:
<?xml version="1.0"?> <mydocument has="an attribute"> <and> <many>elements</many> <many>more elements</many> </and> <plus a="complex"> element as well </plus> </mydocument>
This is a third-party package. Use pip to install it before processing.
pip install xmltodict
You can access the elements, attributes and values inside as follows:
import xmltodict with open("test.xml") as fd: # 将XML文件装载到dict里面 doc = xmltodict.parse(fd.read()) print(doc["mydocument"]["@has"]) # an attribute print(doc["mydocument"]["and"]) # OrderedDict([(u'many', [u'elements', u'more elements'])]) print(doc["mydocument"]["and"]["many"]) # [u'elements', u'more elements'] print(doc["mydocument"]["plus"]["@a"]) # complex print(doc["mydocument"]["plus"]["#text"]) # element as well xmltodict 也有unparse函数让您可以转回XML。
This function has a Streaming mode is suitable for processing files that cannot be placed in memory. It also supports namespace
Install xmltodict: pip3 install xmltodict
demo. py (xml string parsed into dictionary-like):
# coding:utf-8 import xmltodict # 导入 # XML格式字符串 xml_str = """ <xml> <Name>张三</Name> <age>18</age> </xml> """ xml_dict = xmltodict.parse(xml_str) # 解析xml字符串 print(type(xml_dict)) # <class 'collections.OrderedDict'> 类字典型,可以按照字典方法操作 print xml_dict # 遍历 for key, val in xml_dict['xml'].items(): print key, "---", val
demo.py (dictionary converted into xml string):
# coding:utf-8 import xmltodict # 导入 # 字典 xml_dict = { "xml": { "name" : u"张三", "age" : 18 } } # 字典转换成XML字符串 # xml_str = xmltodict.unparse(xml_dict) xml_str = xmltodict.unparse(xml_dict, pretty=True) # pretty表示友好输出(有换行) print(xml_str)
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