[英]How to add xml nodes in python using ElementTree
我有像
<data>
<person>
<Name>xyz</Name>
<add>abc</add>
</person>
</data>
我想添加另一个人节点
<data>
<person>
<Name>xyz</Name>
<add>abc</add>
</person>
<person>
<Name>def</Name>
</person>
</data>
我当前的python代码是
import xml.etree.ElementTree as ET
from xml.etree.ElementTree import Element
from xml.etree.ElementTree import ElementTree
root = ET.parse("Lexicon.xml").getroot()
creRoot = Element("person")
creDictionary = Element("Name")
creDictionary.text = "def"
creRoot.append(creDictionary)
print(ET.tostring(creRoot))
creTree= ElementTree(creRoot)
creTree.write("Lexicon.xml")
当我运行此代码时,它将创建xml文件,而不是添加文件,结果是
<person>
<Name>def</Name>
</person>
它将删除所有以前的数据。.请解决此问题的任何人..在此先感谢
SubElement将用于将节点添加到现有节点:
import xml.etree.ElementTree as etree
data = etree.XML(input)
person = etree.SubElement(data, 'person')
name = etree.SubElement(person, 'Name')
name.text = 'def'
print(etree.tostring(data))
我们需要append
新的create元素append
到各自的父元素。
演示 :
>>> import xml.etree.ElementTree as ET
>>> input_data = """<data>
... <person>
... <Name>xyz</Name>
... <add>abc</add>
... </person>
... </data>"""
#- Create new Element.
>>> person_tag = ET.Element("person")
>>> name_tag = ET.Element("Name")
#- Add text to Element.
>>> name_tag.text = "def"
#- Append Element to Parent Element.
>>> person_tag.append(name_tag)
>>>
#- Just print Parent Element
>>> ET.tostring(person_tag)
'<person><Name>def</Name></person>'
>>>
>>>
#- Created ET object by formstring.
>>> root = ET.fromstring(input_data)
>>>
#- Append above element to root element
>>> root.append(person_tag)
#- Print root Element.
>>> print ET.tostring(root)
<data>
<person>
<Name>xyz</Name>
<add>abc</add>
</person>
<person><Name>def</Name></person></data>
>>> print ET.tostring(root, method="xml")
<data>
<person>
<Name>xyz</Name>
<add>abc</add>
</person>
<person><Name>def</Name></person></data>
>>>
注意 :最好使用lxml
b
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