最近在写一个程序的过程中，遇到一个 Python 变量的变量的问题，就是某个变量的值，还是变量，然后我想取最终的值，感谢伟大的 google，写这篇文章记录下。先上代码：

#!/usr/bin/env python
#encoding=utf-8

import inspect
import ConfigParser

confPath=\"/home/test/config/config\"

def modify_config(domain_name, app_type, port, if_api, vip, svn, svnver, yfb_ip, cron_ip, hosts, hostname, if_cas_oa, if_session, if_nginx, check_apps_dir, health_check):
    if vip is None:
        vip=\"\"
    if yfb_ip is None:
        yfb_ip=\"\"
    if cron_ip is None:
        cron_ip=\"\"
    if hosts is None:
        hosts=\"\"
    if if_cas_oa is None:
        if_cas_oa=\"\"
    if if_session is None:
        if_session=\"\"
    # 更新指定section, option的值
    conf = ConfigParser.ConfigParser()
    conf.read(confPath)
    ### 这个 inspect.getargspec 的作用是取函数的参数列表
    arg_list = inspect.getargspec(modify_config).args
    ### 下面的 conf.set 的第二个参数我只想取 arg 的值，而 第三个参数想取 arg 变量值的值，因为 arg 的值本身就是 modify_config 函数的参数
    for arg in arg_list:
        conf.set(\"online\", arg, locals().get(arg))
    conf.write(open(confPath,\"w\"))

if __name__ == \'__main__\':
    domain_name = \"www.test.com\" 
    app_type = \"osp\" 
    port = \"8081\"
    if_api = \"1\" 
    vip = \"192.168.0.1\" 
    svn = \"https://svn.tools.test.com/svn/\" 
    svnver = \"24562\"
    yfb_ip = \"192.168.0.1\"
    cron_ip = \"192.168.0.2\"
    hosts = \"www.test.com\"
    hostname = \"JD-TEST-COM\"
    if_cas_oa = \"0\"
    if_session = \"mcs2\"
    if_nginx = \"1\"
    check_apps_dir = \"0\"
    health_check = \"_health_check\"
    modify_config(domain_name, app_type, port, if_api, vip, svn, svnver, yfb_ip, cron_ip, hosts, hostname, if_cas_oa, if_session, if_nginx, check_apps_dir, health_check)

参考资料

http://stackoverflow.com/questions/1373164/how-do-i-do-variable-variables-in-python