db_config.ini

[baseconf]

host=127.0.0.1

port=3306

user=root

password=root

db_name=evaluting_sys

[concurrent]

processor=20  

 对应的python代码

 import sys,os

 import ConfigParser  

 class Db_Connector:

   def __init__(self, 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", "")

     cf.write(open("config_file_path", "w"))

 if __name__ == "__main__":

   f = Db_Connector("../conf/db_config.ini")  

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()

    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()

    return True  

if __name__ == "__main__":

   if len(sys.argv) < :

      sys.exit()  

   config_file_path = sys.argv[]

   field = sys.argv[]

   key = sys.argv[]

   if len(sys.argv) == :

      print read_config(config_file_path, field, key)

   else:

      value = sys.argv[]

      write_config(config_file_path, field, key, value)