configparser模块

[DEFAULT]
ServerAliveInterval = 45
Compression = yes
CompressionLevel = 9
ForwardX11 = yes
  
[bitbucket.org]
User = hg
  
[topsecret.server.com]
Port = 50022
ForwardX11 = no

import configparser
config = configparser.ConfigParser()               #拿到config对象

config["DEFAULT"] = {‘ServerAliveInterval‘: ‘45‘,  #第一个[DEFAULT]块，像字典一样去定义；[DEFAULT]块是默认的块，有特殊之处，见后面
                     ‘Compression‘: ‘yes‘,
                     ‘CompressionLevel‘: ‘9‘}

config[‘bitbucket.org‘] = {}                       #第二个[bitbucket.org]块
config[‘bitbucket.org‘][‘User‘] = ‘hg‘

config[‘topsecret.server.com‘] = {‘Port‘:‘50022‘,  #第三个[topsecret.server.com]块
                                    ‘ForwardX11‘:‘no‘}

with open(‘test.ini‘, ‘w‘) as configfile:          #自定义写入的文件
    config.write(configfile)

import configparser
config = configparser.ConfigParser()                

config.read(‘test.ini‘)                       #读取文件

print(config.sections())   #[‘bitbucket.org‘, ‘topsecret.server.com‘]    #sections()就是所有的块，不包括DEFAULT默认块

print(‘bytebong.com‘ in config)# False                                   #不存在就是false

print(config[‘bitbucket.org‘][‘User‘]) # hg                              #存在，拿到键user对应的值hg

print(config[‘DEFAULT‘][‘Compression‘]) #yes                             #存在，拿到键compression对应的值yes                          

for key in config[‘bitbucket.org‘]:  #user serveraliveinterval compression compressionlevel    #除了user，还拿到了DEFAULT默认块里的键
    print(key)
结果：

[‘bitbucket.org‘, ‘topsecret.server.com‘]
False
hg
yes
user
serveraliveinterval
compression
compressionlevel

print(config.options(‘bitbucket.org‘))                             #options()拿到键，同样包括默认块
#[‘user‘, ‘serveraliveinterval‘, ‘compression‘, ‘compressionlevel‘]
print(config.items(‘bitbucket.org‘))                               #items()拿到键值对，同样包括默认块
#[(‘serveraliveinterval‘, ‘45‘), (‘compression‘, ‘yes‘), (‘compressionlevel‘, ‘9‘), (‘user‘, ‘hg‘)]
print(config.get(‘bitbucket.org‘,‘compression‘))                   #get()拿到一个块中的一个键对应的值
#yes

config.add_section(‘yuan‘)                        #新增yuan块
config.remove_section(‘topsecret.server.com‘)   #删除topsecret.server.com块
config.set(‘bitbucket.org‘,‘user‘,‘admin‘)     #修改bitbucket.org块的user键对应的值为admin
config.set(‘bitbucket.org‘,‘passwd‘,‘123456‘)  #新增bitbucket.org块的passwd键，值为123456
config.remove_option(‘bitbucket.org‘,‘user‘)    #删除bitbucket.org块的user键值对
config.set(‘yuan‘,‘k1‘,‘11111‘)                  #新增yuan块的k1键，值为11111

config.write(open(‘test123.ini‘, "w"))           #最后要写入文件，可以是读取时的文件（即覆盖），也可以是新增的另一个文件

[DEFAULT]
serveraliveinterval = 45
compression = yes
compressionlevel = 9

[bitbucket.org]
passwd = 123456

[yuan]
k1 = 11111