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

[baseconf]host=127.0.0.1port=3306user=rootpassword=rootdb_name=evaluting_sys[concurrent]processor=20

示例代码

#!/usr/bin/python# -*- coding:utf-8 -*-#author: lingyue.wkl#desc: use to db ops#---------------------#2012-02-18 created#---------------------import sys,osimport ConfigParserdef 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")

支持命令行+import两种通用模块init_op.py

#!/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,timeimport ConfigParserclass 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 Truedef 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 resultdef 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 Trueif __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)