<?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>

[DEFALUT]
compressionlevel = 9
serveraliveinterval = 45
compression = yes
forwardx11 = yes

[bitbucket.org]
user = hg

[topsecret.server.com]
host port = 50022
forwardx11 = no

import  configparser   #导入configparser模块

#创建一个对象
config = configparser.ConfigParser()
#配置默认全局配置组
config["DEFALUT"] = {"ServerAliveInterval":"45",
                      "Compression":"yes",
                      "CompressionLevel":"9"
                      }
#配置第一个其他组
config["bitbucket.org"] = {}
#没有没有赋给一个变量，直接赋值
config["bitbucket.org"]["User"] = ‘hg‘

#配置第二个其他组
config["topsecret.server.com"] = {}
#这边就赋给一个变量
topsecret = config["topsecret.server.com"]
#通过变量赋值
topsecret["Host Port"] = ‘50022‘
topsecret["ForwardX11"] = ‘no‘
#给全局配置组赋值
config["DEFALUT"]["ForwardX11"] = "yes"
#操作完毕，把配置的内容写入一个配置文件中
with open("example.ini","w") as configfile:
    config.write(configfile)

>>> import  configparser
>>> config = configparser.ConfigParser()
>>> config.sections()    #不读取配置文件，组名列表为空
[]
>>> config.read("example.ini")  #读取配置文件，返回配置文件名
[‘example.ini‘]
>>> config.sections()  #返回除默认配置组的其他组名
[‘bitbucket.org‘, ‘topsecret.server.com‘]
>>> config.defaults()   #读取默认配置组，并返回有序字典
OrderedDict([(‘compressionlevel‘, ‘9‘), (‘serveraliveinterval‘, ‘45‘), (‘compression‘, ‘yes‘), (‘forwardx11‘, ‘yes‘)])

>>> ‘bitbucket.org‘ in config   #组名存在
True
>>> ‘zhangqigao.org‘  in config   #组名不存在
False

>>> config["bitbucket.org"]["User"]  #读取"bitbucket.org"配置组中的值
‘hg‘
>>> config["DEFAULT"]["Compression"]  #读取默认配置组中的值
‘yes‘
>>> topsecret = config[‘topsecret.server.com‘]  #把配置组赋给一个对象
>>> topsecret[‘ForwardX11‘]   #通过对象获取值
‘no

>>> for key in config["bitbucket.org"]:  #循环打印bitbucket.org组下的key值
...     print(key)
...
#输出，只打印默认组和bitbucket.org组的key值
user
compressionlevel
serveraliveinterval
compression
forwardx11
>>> for key in config["topsecret.server.com"]:#循环打印topsecret.server.com组下的key值
...     print(key)
...
#输出，只打印默认组和topsecret.server.com组的key值
host port
forwardx11
compressionlevel
serveraliveinterval
compression

[DEFAULT]
k1 = v1
k2 = v2

[section1]
k3 = v3
k4:v4

[section2]
k5 = 5

import configparser

config = configparser.ConfigParser()
config.read("i.cfg")
sec = config.sections()
print(sec)
#输出
[‘section1‘, ‘section2‘]

options = config.options("section2")  #返回默认组和section2组的key值
print(options)
#输出
[‘k5‘, ‘k1‘, ‘k2‘]

item_list = config.items("section2")   #返回默认组和section2组的key-value值
print(item_list)
#输出
[(‘k1‘, ‘v1‘), (‘k2‘, ‘v2‘), (‘k5‘, ‘5‘)]

val1 = config.get("section2","k1")   #获取section2组中k1对应的值，是否可取是按照上面返回的列表
print(val1)
#输出
v1

val2  = config.getint("section2","k5")  #返回section2中k5的值，这个值返回的int类型的
print(val2)
#输出
5

import configparser

config = configparser.ConfigParser()

config.read("i.cfg")
config.remove_option("section1","k3")  #删除section1组下的k3
config.remove_section("section2")   #删除section2组
with open("i.cfg2","w") as f:   #重新写入一个文件
    config.write(f)

#输出，写入文件的内容
[DEFAULT]
k1 = v1
k2 = v2

[section1]
k4 = v4

import configparser

config = configparser.ConfigParser()
config.read("i.cfg")
sec = config.has_option("section2","k5")  #是否存在section2组内有k5
print(sec)
#输出
True

sec = config.has_section("zhangqigao")  #是否存在zhangqigao组
print(sec)
#输出
False

config.add_section("zhangqigao")  #添加section组zhangqigao

config.add_section("zhangqigao")  #重新写入到一个配置文件中
with open("i.cfg3","w") as f:
    config.write(f)

import configparser

config = configparser.ConfigParser()
config.read("i.cfg")

config.set("zhangqigao","z","18")  #设置或者添加zhangqigao中option值

with open("i.cfg3","w") as f:   #重新写入文件中
    config.write(f)