configParse模块（二十七）

configparser用于处理特定格式的文件，其本质上是利用open来操作文件。

# 注释1

;  注释2

[section1] # 节点

k1 = v1    # 值

k2:v2       # 值

[section2] # 节点

k1 = v1    # 值

指定格式

生成.ini

import configparser

config = configparser.ConfigParser()

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

                       'Compression':'yes',

                        'CompressionLevel':''

                     }

config['bitbucket.org'] = { }

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

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

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

topsecret['Host Port'] = ''

topsecret['ForwardX11'] = 'no'

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

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

    config.write(configfile)

[DEFAULT]

compression = yes

serveraliveinterval = 45

compressionlevel = 9

forwardx11 = yes

[bitbucket.org]

user = abc

[topsecret.server.com]

host port = 50022

forwardx11 = no

读取

import configparser

config = configparser.ConfigParser()

config.read('example.ini')

# 查看所有标题

res = config.sections()

print(res) # ['bitbucket.org', 'topsecret.server.com']

# 查看标题section下所有的key=value的key ，DEFAULT 的key会在每一个子项中出现

options = config.options('bitbucket.org')

print(options) # ['user', 'passwd', 'compression', 'serveraliveinterval', 'compressionlevel', 'forwardx11']

# 查看标题section1下所有key=value的(key,value)格式

item_list=config.items('bitbucket.org')

print(item_list)

# [('compression', 'yes'), ('serveraliveinterval', '45'), ('compressionlevel', '9'), ('forwardx11', 'yes'), ('user', 'abc'), ('passwd', '123')]

# 查看标题section1下user的值=>字符串格式

val = config.get('bitbucket.org','user')

print(val) # abc

# 查看标题section1下passwd的值=>整数格式

val1 = config.getint('bitbucket.org','passwd')

print(val1) #

# 查看标题section1下is_admin的值=>布尔值格式

val2=config.getboolean('bitbucket.org','is_admin')

print(val2) # True

# 查看标题section1下salary的值=>浮点型格式

val3=config.getfloat('bitbucket.org','salary')

print(val3) # 31.0

import configparser

config = configparser.ConfigParser()

config.read('example.ini')

# 查看所有标题

res = config.sections()

print(res) # ['bitbucket.org', 'topsecret.server.com']

# 查看标题section下所有的key=value的key ，DEFAULT 的key会在每一个子项中出现

options = config.options('bitbucket.org')

print(options) # ['user', 'passwd', 'compression', 'serveraliveinterval', 'compressionlevel', 'forwardx11']

# 查看标题section1下所有key=value的(key,value)格式

item_list=config.items('bitbucket.org')

print(item_list)

# [('compression', 'yes'), ('serveraliveinterval', '45'), ('compressionlevel', '9'), ('forwardx11', 'yes'), ('user', 'abc'), ('passwd', '123')]

# 查看标题section1下user的值=>字符串格式

val = config.get('bitbucket.org','user')

print(val) # abc

# 查看标题section1下passwd的值=>整数格式

val1 = config.getint('bitbucket.org','passwd')

print(val1) #

# 查看标题section1下is_admin的值=>布尔值格式

val2=config.getboolean('bitbucket.org','is_admin')

print(val2) # True

# 查看标题section1下salary的值=>浮点型格式

val3=config.getfloat('bitbucket.org','salary')

print(val3) # 31.0

改写

import configparser

config = configparser.ConfigParser()

config.read('example.ini',encoding='utf-8')

# 删除整个标题section2

config.remove_section('section2')

# 删除标题section1下的某个key

config.remove_option('section1','salary')

config['section1']['is_admin'] = 'False'

config.set('section1','passwd','')

# 判断是否存在某个标题

print(config.has_section('section1')) # True

# 判断标题section1下是否有user

print(config.has_option('section1','user')) # True

# 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

config.set('egon','age','')

#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'))