Python读取修改ini配置文件[ConfigParser]

使用到的包：ConfigParser 文档

代码托管位置 github-pytools

需求

写个项目，用到数据库，多个地方使用，不能硬编码。很类似java的properties文件

Python支持ini文件的读取

ini文件

db_config.ini

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[ baseconf ] host = 127.0.0.1 port = 3306 user = root password = root db_name = evaluting _sys [ concurrent ] processor = 20

示例代码

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#!/usr/bin/python # -*- coding:utf-8 -*- #author: lingyue.wkl #desc: use to db ops #--------------------- #2012-02-18 created #---------------------   import sys , os import ConfigParser def test ( config_file_path ) :      cf = ConfigParser . ConfigParser ( )      cf . read ( config_file_path )        s = cf . sections ( )      print 'section:' , s        o = cf . options ( "baseconf" )      print 'options:' , o        v = cf . items ( "baseconf" )      print 'db:' , v        db_host = cf . get ( "baseconf" , "host" )      db_port = cf . getint ( "baseconf" , "port" )      db_user = cf . get ( "baseconf" , "user" )      db_pwd = cf . get ( "baseconf" , "password" )        print db_host , db_port , db_user , db_pwd        cf . set ( "baseconf" , "db_pass" , "123456" )      cf . write ( open ( "config_file_path" , "w" ) ) if __name__ == "__main__" :      test ( "../conf/db_config.ini" )

通用模块init_op.py

支持命令行+import两种

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#!/usr/bin/python # -*- coding:utf-8 -*- #author: lingyue.wkl #desc: use to read ini #--------------------- #2012-02-18 created #2012-09-02 changed for class support #--------------------- import sys , os , time import ConfigParser   class Config :      def __init__ ( self , path ) :          self . path = path          self . cf = ConfigParser . ConfigParser ( )          self . cf . read ( self . path )      def get ( self , field , key ) :          result = ""          try :              result = self . cf . get ( field , key )          except :              result = ""          return result      def set ( self , filed , key , value ) :          try :              self . cf . set ( field , key , value )              cf . write ( open ( self . path , 'w' ) )          except :              return False          return True   def read_config ( config_file_path , field , key ) :      cf = ConfigParser . ConfigParser ( )      try :          cf . read ( config_file_path )          result = cf . get ( field , key )      except :          sys . exit ( 1 )      return result   def write_config ( config_file_path , field , key , value ) :      cf = ConfigParser . ConfigParser ( )      try :          cf . read ( config_file_path )          cf . set ( field , key , value )          cf . write ( open ( config_file_path , 'w' ) )      except :          sys . exit ( 1 )      return True   if __name__ == "__main__" :    if len ( sys . argv )    4 :        sys . exit ( 1 )      config_file_path = sys . argv [ 1 ]    field = sys . argv [ 2 ]    key = sys . argv [ 3 ]    if len ( sys . argv ) == 4 :        print read_config ( config_file_path , field , key )    else :        value = sys . argv [ 4 ]        write_config ( config_file_path , field , key , value )