python基础之xml处理

xml查询处理

# -*- coding:utf-8 -*-
# Author:chinablue

# tag text attrib

import xml.etree.ElementTree as ET

tree = ET.parse("xmlabc")
root = tree.getroot()

# print root
# print root.tag
#
# # 遍历xml整个文档
# for child in root:
#     print child.tag,child.attrib
#     for i in child:
#         print i.tag,i.text

# 只遍历某个节点
for node in root.iter('age'):
    print node.tag,node.text

xml修改处理

# -*- coding:utf-8 -*-
# Author:chinablue

# tag text attrib

import xml.etree.ElementTree as ET

tree = ET.parse("xmlabc")
root = tree.getroot()

# 修改age
for node in root.iter('age'):
    new_age = int(node.text) + 1
    node.text = str(new_age)
    node.set("updated","yes")

tree.write("xmlabc_modify.xml")

xml 删除处理

# -*- coding:utf-8 -*-
# Author:chinablue

# tag text attrib

import xml.etree.ElementTree as ET

tree = ET.parse("xmlabc")
root = tree.getroot()


# 删除node
for country in root.findall('country'):
    rank = int(country.find('rank').text)
    if rank > 50:
        root.remove(country)
tree.write("output.xml")

xml 创建处理

# -*- coding:utf-8 -*-
# Author:chinablue

# tag text attrib

import xml.etree.ElementTree as ET

new_xml = ET.Element('namelist')
name = ET.SubElement(new_xml,"name",attrib={'enrolled':'yes'})
age = ET.SubElement(name,"age",attrib={'checked':'no'})
sex = ET.SubElement(name,"sex")

age.text = '23'

name2 = ET.SubElement(new_xml,"name",attrib={'enrolled':'yes'})
age = ET.SubElement(name2,"age",attrib={'checked':'no'})
age.text = '33'

# 生成文档对象
et = ET.ElementTree(new_xml)
et.write("create.xml",encoding="utf-8",xml_declaration=True)
ET.dump(new_xml)