转载自:http://hi.baidu.com/myitlyj/blog/item/25586bd7088ba3dba044df6b.html 在程序中使用配置文件来灵活的配置一些参数是一件很常见的事情,配置文件的解析并不复杂,在python里更是如此,在官方发布的库中就包含有做这件事情的库,那就是ConfigParser,这里简单的做一些介绍。 ConfigParser解析的配置文件的格式比较象ini的配置文件格式,就是文件中由多个section构成,每个section下又有多个配置项,比如:
[db] db_host=127.0.0.1 db_port=3306 db_user=root db_pass=password [concurrent] thread=10 processor=20
假设上面的配置文件的名字为test.conf。里面包含两个section,一个是db, 另一个是concurrent, db里面还包含有4项,concurrent里面有两项。这里来做做解析: #-*- encoding: gb2312 -*- import ConfigParser import string, os, sys
cf = ConfigParser.ConfigParser() cf.read("test.conf") # 返回所有的section s = cf.sections() print 'section:', s
o = cf.options("db") print 'options:', o
v = cf.items("db") print 'db:', v
print '-'*60 #可以按照类型读取出来 db_host = cf.get("db", "db_host") db_port = cf.getint("db", "db_port") db_user = cf.get("db", "db_user") db_pass = cf.get("db", "db_pass")
# 返回的是整型的 threads = cf.getint("concurrent", "thread") processors = cf.getint("concurrent", "processor")
print "db_host:", db_host print "db_port:", db_port print "db_user:", db_user print "db_pass:", db_pass
print "thread:", threads print "processor:", processors #修改一个值,再写回去 cf.set("db", "db_pass", "zhaowei") cf.write(open("test.conf", "w"))
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