ini文件是常用的配置文件格式，当然，除了它之外，还有其他好多种，比如conf，xml等等。不过，今天就谈论ini罢了。

python对此提供了相应的模块，示例如下：

#coding=utf-8

import ConfigParser

def writeConfig(filename):

        config = ConfigParser.ConfigParser()

        # set db

        section_name = 'db'

        config.add_section( section_name  )

        config.set( section_name, 'dbname', 'MySQL')

        config.set( section_name, 'host', '127.0.0.1')

        config.set( section_name, 'port', '80')

        config.set( section_name, 'password', '123456')

        config.set( section_name, 'databasename', 'test')

        # set app

        section_name = 'app'

        config.add_section( section_name  )

        config.set( section_name, 'loggerapp', '192.168.20.2')

        config.set( section_name, 'reportapp', '192.168.20.3')

        # write to file

        config.write( open(filename, 'a') )

def updateConfig(filename, section, **keyv):

        config = ConfigParser.ConfigParser()

        config.read(filename)

        [config.set(section, key, keyv[key]) for key in keyv if config.has_option(section, key)]

        config.write( open(filename, 'r+') )

if __name__ == '__main__':

        file_name = 'test.ini'

        writeConfig(file_name)

        updateConfig(file_name, 'app', reportapp = '192.168.100.100')

        print "end__"