python模块之configparser模块

configparser模块

[section1]
k1 = v1
k2:v2
user=xiaoming
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() #['section1', 'section2']
print(res)
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',''))
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'))

基于上述方法添加一个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)