configparser模块

configparser模块

配置文件a.cfg如下

[section1]
k1 = v1
k2:v2
user=egon
age=18
is_admin=true
salary=31

[section2]
k1 = v1

读取

import configparser
config = configparser.ConfigParser()
config.read('a.cfg')
#查看所有的标题
res = config.sections()
print(res)  #['section1', 'section2']

#查看标题section1下所有key=value的key
options = config.options('section1')
print(options)  #['k1', 'k2', 'user', 'age', 'is_admin', 'salary']

#查看标题section1下所有key=value的(key,value)格式
item_list = config.items('section1')
print(item_list)  #[('k1', 'v1'), ('k2', 'v2'), ('user', 'egon'), ('age', '18'), ('is_admin', 'true'), ('salary', '31')]

#查看标题section1下user的值=>字符串格式
val = config.get('section1', 'user')
print(val)  #egon

#查看标题section1下age的值=>整数格式
val1 = config.getint('section1', 'age')
print(val1)  #18

#查看标题section1下is_admin的值=>布尔值格式
val2 = config.getboolean('section1', 'is_admin')
print(val2)  #True

#查看标题section1下salary的值=>浮点型格式
val3 = config.getfloat('section1', 'salary')
print(val3)  #31.0

改写

import configparser

config = configparser.ConfigParser()
config.read('a.cfg', encoding='utf-8')

#删除整个标题section2
config.remove_section('section2')

#删除标题section1下的某个k1和k2
config.remove_option('section1', 'k1')
config.remove_option('section1', 'k2')

#判断是否存在某个标题
print(config.has_section('section1'))

#判断标题section1下是否有user
print(config.has_option('section1', 'user'))

#添加一个标题
config.add_section('egon')

#在标题egon下添加name=egon,age=18的配置
config.set('egon', 'name', 'egon')
#config.set('egon', 'age', 18)  #报错,必须是字符串


#最后将修改的内容写入文件,完成最终的修改
config.write(open('a.cfg', 'w'))

自己创建一个ini文档

import configparser

config = configparser.ConfigParser()
config["DEFAULT"] = {'ServerAliveInterval': '45',
                     'Compression': 'yes',
                     'CompressionLevel': '9'}

config['bitbucket.org'] = {}
config['bitbucket.org']['User'] = 'hg'
config['topsecret.server.com'] = {}

topsecret = config['topsecret.server.com']
topsecret['Host Port'] = '50022'  # mutates the parser
topsecret['ForwardX11'] = 'no'  # same here
config['DEFAULT']['ForwardX11'] = 'yes'

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

生成的配置文件examp.ini为：

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

[bitbucket.org]
user = hg

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