python读写ini文件示例(python读写文件)



很类似java的properties文件

xml文件

代码如下:

db_config.ini
[baseconf]
host=127.0.0.1
port=3306
user=root
password=root
db_name=evaluting_sys
[concurrent]
processor=20

对应的python代码

代码如下:

#!/usr/bin/python
# -*- coding:utf-8 -*-
#author: lingyue.wkl
#desc: use to db ops
#---------------------
#2012-02-18 created

#---------------------
import sys,os
import ConfigParser

class Db_Connector:
def __init__(self, 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__":
f = Db_Connector("../conf/db_config.ini")

得到结果：
代码如下:

section: ['concurrent', 'baseconf']
options: ['host', 'db_name', 'user', 'password', 'port']
db: [('host', '127.0.0.1'), ('db_name', 'evaluting_sys'), ('user', 'root'), ('password', 'root'), ('port', '3306')]
127.0.0.1 3306 root root

通用模块：支持命令行+import两种形式
ini_op.py
代码如下:

#!/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,time
import ConfigParser

class 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 True
def 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 result

def 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 True

if __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)

第二个示例

代码如下:

import os
import ConfigParser

def main():
cp = ConfigParser.ConfigParser()
cf = open(u"in.ini")
cp.readfp(cf)

secs = cp.sections()
print cp.sections()

for sec in secs:
opts = cp.options(sec)
for opt in opts:
val = cp.get(sec, opt)
val += "test....."
cp.set(sec, opt, val)

cp.write(open("out.ini", "w"))

if __name__ == '__main__':
main()