import ConfigParser

cf = ConfigParser.ConfigParser()


#allow_no_value=True参数可以允许配置文件的选项中只有key而没有value

#read config

cf.read("test.conf")


#read可以设置读取多个配置文件，使用列表形式即可

# return all section

secs = cf.sections()

print 'sections:', secs

opts = cf.options("sec_a")

print 'options:', opts

kvs = cf.items("sec_a")

print 'sec_a:', kvs

#read by type

str_val = cf.get("sec_a", "a_key1")

int_val = cf.getint("sec_a", "a_key2")

print "value for sec_a's a_key1:", str_val

print "value for sec_a's a_key2:", int_val

#write config

#update value

cf.set("sec_b", "b_key3", "new-$r")

#set a new value

cf.set("sec_b", "b_newkey", "new-value")

#create a new section

cf.add_section('a_new_section')

cf.set('a_new_section', 'new_key', 'new_value')

#write back to configure file

cf.write(open("test.conf", "w"))