<?xml version="1.0"?>

 <data>

     <country name="Liechtenstein">

         <rank updated="yes">2</rank>

         <year>2008</year>

         <gdppc>141100</gdppc>

         <neighbor name="Austria" direction="E"/>

         <neighbor name="Switzerland" direction="W"/>

     </country>

     <country name="Singapore">

         <rank updated="yes">5</rank>

         <year>2011</year>

         <gdppc>59900</gdppc>

         <neighbor name="Malaysia" direction="N"/>

     </country>

     <country name="Panama">

         <rank updated="yes">69</rank>

         <year>2011</year>

         <gdppc>13600</gdppc>

         <neighbor name="Costa Rica" direction="W"/>

         <neighbor name="Colombia" direction="E"/>

     </country>

 </data>

 import xml.etree.ElementTree as ET

 tree = ET.parse("xmltest.xml")

 root = tree.getroot()

 print(root.tag)

 #遍历xml文档

 for child in root:

     print(child.tag, child.attrib)

     for i in child:

         print(i.tag,i.text)

 #只遍历year 节点

 for node in root.iter('year'):

     print(node.tag,node.text)

 修改和删除xml文档内容

 import xml.etree.ElementTree as ET

 tree = ET.parse("xmltest.xml")

 root = tree.getroot()

 #修改

 for node in root.iter('year'):

     new_year = int(node.text) + 1

     node.text = str(new_year)

     node.set("updated","yes")

 tree.write("xmltest.xml")

 #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')

 自己创建xml文档

 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")

 sex.text = ''

 name2 = ET.SubElement(new_xml,"name",attrib={"enrolled":"no"})

 age = ET.SubElement(name2,"age")

 age.text = ''

 et = ET.ElementTree(new_xml) #生成文档对象

 et.write("test.xml", encoding="utf-8",xml_declaration=True)

 ET.dump(new_xml) #打印生成的格式

 [DEFAULT]

 ServerAliveInterval = 45

 Compression = yes

 CompressionLevel = 9

 ForwardX11 = yes

 [bitbucket.org]

 User = hg

 [topsecret.server.com]

 Port = 50022

 ForwardX11 = no

 如果想用python生成一个这样的文档怎么做呢？

 import configparser

 config = configparser.ConfigParser()

 config["DEFAULT"] = {'ServerAliveInterval': '',

                       'Compression': 'yes',

                      'CompressionLevel': ''}

 config['bitbucket.org'] = {}

 config['bitbucket.org']['User'] = 'hg'

 config['topsecret.server.com'] = {}

 topsecret = config['topsecret.server.com']

 topsecret['Host Port'] = ''     # mutates the parser

 topsecret['ForwardX11'] = 'no'  # same here

 config['DEFAULT']['ForwardX11'] = 'yes'

 with open('example.ini', 'w') as configfile:

    config.write(configfile)

 　　

 写完了还可以再读出来哈。

 >>> import configparser

 >>> config = configparser.ConfigParser()

 >>> config.sections()

 []

 >>> config.read('example.ini')

 ['example.ini']

 >>> config.sections()

 ['bitbucket.org', 'topsecret.server.com']

 >>> 'bitbucket.org' in config

 True

 >>> 'bytebong.com' in config

 False

 >>> config['bitbucket.org']['User']

 'hg'

 >>> config['DEFAULT']['Compression']

 'yes'

 >>> topsecret = config['topsecret.server.com']

 >>> topsecret['ForwardX11']

 'no'

 >>> topsecret['Port']

 ''

 >>> for key in config['bitbucket.org']: print(key)

 ...

 user

 compressionlevel

 serveraliveinterval

 compression

 forwardx11

 >>> config['bitbucket.org']['ForwardX11']

 'yes'

 configparser增删改查语法

 [section1]

 k1 = v1

 k2:v2

 [section2]

 k1 = v1

 import ConfigParser

 config = ConfigParser.ConfigParser()

 config.read('i.cfg')

 # ########## 读 ##########

 #secs = config.sections()

 #print secs

 #options = config.options('group2')

 #print options

 #item_list = config.items('group2')

 #print item_list

 #val = config.get('group1','key')

 #val = config.getint('group1','key')

 # ########## 改写 ##########

 #sec = config.remove_section('group1')

 #config.write(open('i.cfg', "w"))

 #sec = config.has_section('wupeiqi')

 #sec = config.add_section('wupeiqi')

 #config.write(open('i.cfg', "w"))

 #config.set('group2','k1',11111)

 #config.write(open('i.cfg', "w"))

 #config.remove_option('group2','age')

 #config.write(open('i.cfg', "w"))