实例文件：
[[email protected] ~]# cat test.ini
[base]
host = 192.168.88.121
port = 3306
user = root
path = /home
passwd = 123
[callback]
path = /Autops
alert = yes
count = 1
ftp = no
基础用法：代码片段
>>> cf.read("test.ini") #读取配置文件
[‘test.ini‘]
>>> cf.sections() #片段名
[‘base‘, ‘callback‘]
>>> cf.options("callback") #配置key值/配置项
[‘path‘, ‘alert‘, ‘count‘, ‘ftp‘]
>>> cf.items("callback") #配置选项和值
[(‘path‘, ‘/Autops‘), (‘alert‘, ‘yes‘), (‘count‘, ‘1‘), (‘ftp‘, ‘no‘)]
>>> cf.get("base","port")
‘3306‘
>>> cf.get("base","passwd") #没有的key的会报错
Traceback (most recent call last):
ConfigParser.NoOptionError: No option ‘passwd‘ in section: ‘base‘
>>> cf.set("base","passwd","123") #设定选项，key可以时不存在的
>>> cf.write(open("test.ini","w")) #写入配置文件
>>> cf.getint(‘base‘,‘port‘) #直接读出int型，但value必须可以转成int
3306
>>> cf.getfloat(‘base‘,‘port‘)
3306.0
>>> cf.getboolean(‘callback‘,‘alert‘) #0/no/false/off都视为False，
#1/yes/true/on视为True
True
>>> cf.getboolean(‘callback‘,‘count‘)
True
注意事项：
- 当配置文件中有定义DEFAULT片段时，在其他片段中找不到的相应的key时，就会到DEFAULT中去查找，如果还是没有就会报错NoOptionError
[DEFAULT]
dbn=mysql
user=root
[base]
user = autops
>>> cf.get(‘base‘,‘user‘)
‘autops‘
>>> cf.get(‘base‘,‘dbn‘)
‘mysql #dbn的值是default里的
- 可以像字符串进行变量替换，形成一个大字符串 %s
[DEFAULT]
conn_str=%(dbn)s -u%(user)s -p%(passwd)s %(db)s
dbn=mysql
user=root
host = 192.168.88.121
port = 3306
[db1]
port = 3307
user = root
db = autops
passwd = 123
[db2]
user = monitor
db = monitor
passwd = 123
结果：
>>> cf.get("db1","conn_str")
‘mysql -uroot -p123 autops‘
>>> cf.get("db2","conn_str")
‘mysql -umonitor -p123 monitor