I. Introduction to ConfigParser
ConfigParser is a package for reading configuration files. The format of a configuration file is as follows: sections are enclosed in brackets "[ ]", and below a section are key-value-like configuration contents.
Copy Code The code is as follows.
[db]
db_host = 127.0.0.1
db_port = 22
db_user = root
db_pass = rootroot
[concurrent]
thread = 10
processor = 20
Sections are enclosed in brackets "[ ]", followed by sections that are configured as key-value-like options.
II. ConfigParser Initial Work
To use ConfigParser, you need to initialize the instance and read the configuration file:
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cf = ()
("Configuration File Name")
ConfigParser Common Methods
1. Get all the sections. i.e. read all the "[ ]" in the config file into the list:
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s = ()
print 'section:', s
will be output (the following will all be examples of profiles in the profile):
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section: ['db', 'concurrent']
2. Get the options for the specified section, i.e., read the key from a section of the configuration file into the list:
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o = ("db")
print 'options:', o
Will output:
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options: ['db_host', 'db_port', 'db_user', 'db_pass']
3. Get configuration information for the specified section.
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v = ("db")
print 'db:', v
Will output:
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db: [('db_host', '127.0.0.1'), ('db_port', '22'), ('db_user', 'root'), ('db_pass', 'rootroot')]
4. Read the option information of the specified section by type.
The same goes for getfloat, getboolean.
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# Can be read out by type
db_host = ("db", "db_host")
db_port = ("db", "db_port")
db_user = ("db", "db_user")
db_pass = ("db", "db_pass")
# Returns an integer
threads = ("concurrent", "thread")
processors = ("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
Will output:
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db_host: 127.0.0.1
db_port: 22
db_user: root
db_pass: rootroot
thread: 10
processor: 20
5. Set the value of an option. (Remember to write back at the end)
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("db", "db_pass", "zhaowei")
(open("", "w"))
6. Add a section. (Again, write back)
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cf.add_section('liuqing')
('liuqing', 'int', '15')
('liuqing', 'bool', 'true')
('liuqing', 'float', '3.1415')
('liuqing', 'baz', 'fun')
('liuqing', 'bar', 'Python')
('liuqing', 'foo', '%(bar)s is %(baz)s!')
(open("", "w"))
7. Remove the section or option. (You have to write back any changes you make.)
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cf.remove_option('liuqing','int')
cf.remove_section('liuqing')
(open("", "w"))
Copy Code The code is as follows.
#!/usr/bin/env python
from ConfigParser import ConfigParser
CONFIGFILE=""
config=ConfigParser()
(CONFIGFILE)
print ('messages','greeting')
radius=input(('messages','questions')+' ')
print ('messages','result')
print ('numbers','pi')*radius**2
s=()
print'section: ',s
o=('messages')
print'messages option: ',o
v=("messages")
print'message de xinxi: ',v
config.add_section('liuyang1')
('liuyang1','int','15')
('liuyang'1,'hhhh','hello world')
(open("","w"))
print ('liuyang1','int')
print ('liuyang1','hhhh')
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#!/usr/bin/env python
import ConfigParser
import sys
config=()
config.add_section("book1")
("book1","title","hello world")
("book1","aut","log")
(open("","w"))