读取ini配置文件

[TOC]

读取配置文件

configparser

简单使用

配置文件示例

[db]
db_host = localhost  ds
db_port = 3306
db_user = root
db_passwd = "root"

[server]
server_ip = localhost

读取程序

# coding: utf-8
from configparser import ConfigParser

cf = ConfigParser()
cf.read("config.ini")

print(cf.get("db", "db_host"))
print(cf.get("db", "db_port"))
print(cf.get("db", "db_user"))
print(cf.get("db", "db_passwd"))

print(cf.get("server", "server_ip"))

输出

localhost  ds
3306
root
"root"
localhost

更多

• configparser类可以读写配置文件

写一个配置文件

代码

# coding: utf-8
import configparser


config = configparser.ConfigParser()
# DEFAULT section
config['DEFAULT'] = {
    'ServerAliveInterval': '45',
    'Compression': 'yes',
    'CompressionLevel': '9'
}

# bitbucket.org section
config["bitbucket.org"] = {}
config['bitbucket.org']['User'] = 'hg'

# topsecret.server.com section
config['topsecret.server.com'] = {}
topsecret = config['topsecret.server.com']
topsecret['Port'] = '50022'
topsecret['ForwardX11'] = 'no'

# DEFAULT section again
config['DEFAULT']['ForwardX11'] = 'yes'

# 讲配置写入到ini文件
with open('example.ini', 'w') as configfile:
    config.write(configfile)

写入结果

File: example.ini

[DEFAULT]
compressionlevel = 9
serveraliveinterval = 45
compression = yes
forwardx11 = yes

[bitbucket.org]
user = hg

[topsecret.server.com]
port = 50022
forwardx11 = no

读取生成的配置文件

代码

# coding: utf-8

import configparser
config = configparser.ConfigParser()
config.sections()

config.read('example.ini')
config.sections()
print('bitbucket.org' in config)
print('bytebong.com' in config)

print(config['bitbucket.org']['User'])
print(config['DEFAULT']['Compression'])

topsecret = config['topsecret.server.com']
print(topsecret['ForwardX11'])
print(topsecret['Port'])

for key in config['bitbucket.org']:
    print(key)

print(config['bitbucket.org']['ForwardX11'])

读取结果

True
False
hg
yes
no
50022
user
compressionlevel
serveraliveinterval
compression
forwardx11
yes

回退值

ini配置文件格式

• A configuration file consists of sections, each led by a [section] header, followed by key/value entries separated by a specific string (= or : by default [1]).

• By default, section names are case sensitive but keys are not.

• Leading and trailing whitespace is removed from keys and values.

示例

[Simple Values]
key=value
spaces in keys=allowed
spaces in values=allowed as well
spaces around the delimiter = obviously
you can also use : to delimit keys from values

[All Values Are Strings]
values like this: 1000000
or this: 3.14159265359
are they treated as numbers? : no
integers, floats and booleans are held as: strings
can use the API to get converted values directly: true

[Multiline Values]
chorus: I'm a lumberjack, and I'm okay
    I sleep all night and I work all day

[No Values]
key_without_value
empty string value here =

[You can use comments]
# like this
; or this

# By default only in an empty line.
# Inline comments can be harmful because they prevent users
# from using the delimiting characters as parts of values.
# That being said, this can be customized.

    [Sections Can Be Indented]
        can_values_be_as_well = True
        does_that_mean_anything_special = False
        purpose = formatting for readability
        multiline_values = are
            handled just fine as
            long as they are indented
            deeper than the first line
            of a value
        # Did I mention we can indent comments, too?