configparser模块
用于生成和修改常见配置文档，当前模块的名称在python 3.x版本变更为configparser；
来看一个好多软件的常见文档格式如下
[DEFAULT] ServerAliveInterval = 45 Compression = yes CompressionLevel = 9 ForwardX11 = yes [bitbucket.org] User = hg [topsecret.server.com] Port = 50022 ForwardX11 = no
如果想用python生成一个这样的文档怎么做呢
#!/usr/bin/env python3.8
# __author: "smoke"
# date: 2021/1/21 下午10:10
import configparser
config = configparser.ConfigParser() #生成文件配置的对象
config["DEFAULT"] = {'ServerAliveInterval':'45',
'Compression':'yes',
'CompressionLevel':'9'}
config['bitbucket.org'] = {}
config['bitbucket.org']['User'] = 'hg'
config['topsecret.server.com'] = {}
topsecret = config['topsecret.server.com']
topsecret['Host Port'] = '50022' # mutates the parser
topsecret['ForwardX11'] = 'no' #same here
config['DEFAULT']['ForwardX11'] = 'yes'
with open('example.ini','w') as configfile:
config.write(configfile)
查看生成的example.ini配置文件
smoke@smoke-GS70-2PC-Stealth:~/PycharmProjects/pythonProject/lean_python$ cat example.ini [DEFAULT] serveraliveinterval = 45 compression = yes compressionlevel = 9 forwardx11 = yes [bitbucket.org] user = hg [topsecret.server.com] host port = 50022 forwardx11 = no
读配置文件
#!/usr/bin/env python3.8
# __author: "smoke"
# date: 2021/1/21 下午10:10
import configparser
config = configparser.ConfigParser() #生成文件配置的对象
print(config.sections()) #读取节点名字以列表返回
/home/smoke/PycharmProjects/pythonProject/venv/bin/python /home/smoke/PycharmProjects/pythonProject/lean_python/configparser_module.py
[]
Process finished with exit code 0
#!/usr/bin/env python3.8
# __author: "smoke"
# date: 2021/1/21 下午10:10
import configparser
config = configparser.ConfigParser() #生成文件配置的对象
config.read('example.ini') #读取配置文件，做关联
print(config.sections()) #读取节点名字以列表返回,不会返回DEFAULT
/home/smoke/PycharmProjects/pythonProject/venv/bin/python /home/smoke/PycharmProjects/pythonProject/lean_python/configparser_module.py
['bitbucket.org', 'topsecret.server.com']
Process finished with exit code 0
#!/usr/bin/env python3.8
# __author: "smoke"
# date: 2021/1/21 下午10:10
import configparser
config = configparser.ConfigParser() #生成文件配置的对象
config.read('example.ini') #读取配置文件，做关联
print(config.defaults()) #读取defaults节点键值，
/home/smoke/PycharmProjects/pythonProject/venv/bin/python /home/smoke/PycharmProjects/pythonProject/lean_python/configparser_module.py
{'serveraliveinterval': '45', 'compression': 'yes', 'compressionlevel': '9', 'forwardx11': 'yes'}
Process finished with exit code 0
#!/usr/bin/env python3.8
# __author: "smoke"
# date: 2021/1/21 下午10:10
import configparser
config = configparser.ConfigParser() #生成文件配置的对象
config.read('example.ini') #读取配置文件，做关联
print('bitbucket.org' in config) #判断config有没有bitbucket.org配置块
/home/smoke/PycharmProjects/pythonProject/venv/bin/python /home/smoke/PycharmProjects/pythonProject/lean_python/configparser_module.py
True
Process finished with exit code 0
#!/usr/bin/env python3.8
# __author: "smoke"
# date: 2021/1/21 下午10:10
import configparser
config = configparser.ConfigParser() #生成文件配置的对象
config.read('example.ini') #读取配置文件，做关联
print('bytebong.com' in config)
/home/smoke/PycharmProjects/pythonProject/venv/bin/python /home/smoke/PycharmProjects/pythonProject/lean_python/configparser_module.py
False
Process finished with exit code 0
#!/usr/bin/env python3.8
# __author: "smoke"
# date: 2021/1/21 下午10:10
import configparser
config = configparser.ConfigParser() #生成文件配置的对象
config.read('example.ini') #读取配置文件，做关联
print(config['bitbucket.org']['User']) #取得User的值
/home/smoke/PycharmProjects/pythonProject/venv/bin/python /home/smoke/PycharmProjects/pythonProject/lean_python/configparser_module.py
hg
Process finished with exit code 0
#!/usr/bin/env python3.8
# __author: "smoke"
# date: 2021/1/21 下午10:10
import configparser
config = configparser.ConfigParser() #生成文件配置的对象
config.read('example.ini') #读取配置文件，做关联
topsecret = config['topsecret.server.com']
print(topsecret['Forwardx11'])
/home/smoke/PycharmProjects/pythonProject/venv/bin/python /home/smoke/PycharmProjects/pythonProject/lean_python/configparser_module.py
no
Process finished with exit code 0
#!/usr/bin/env python3.8
# __author: "smoke"
# date: 2021/1/21 下午10:10
import configparser
config = configparser.ConfigParser() #生成文件配置的对象
config.read('example.ini') #读取配置文件，做关联
for key in config:
print(key) #会打印所有的块
/home/smoke/PycharmProjects/pythonProject/venv/bin/python /home/smoke/PycharmProjects/pythonProject/lean_python/configparser_module.py
DEFAULT
bitbucket.org
topsecret.server.com
Process finished with exit code 0
#!/usr/bin/env python3.8
# __author: "smoke"
# date: 2021/1/21 下午10:10
import configparser
config = configparser.ConfigParser() #生成文件配置的对象
config.read('example.ini') #读取配置文件，做关联
for key in config['bitbucket.org']: #会打印default和bitbucket.org的节点所有子键
print(key)
/home/smoke/PycharmProjects/pythonProject/venv/bin/python /home/smoke/PycharmProjects/pythonProject/lean_python/configparser_module.py
user
serveraliveinterval
compression
compressionlevel
forwardx11
Process finished with exit code 0
删除配置文件内容
#!/usr/bin/env python3.8
# __author: "smoke"
# date: 2021/1/21 下午10:10
import configparser
config = configparser.ConfigParser() #生成文件配置的对象
config.read('example.ini') #读取配置文件，做关联
config.remove_section('topsecret.server.com') #删除topsecret.server.com节点所有内容
config.write(open('i.cfg',"w")) #重新创建一个新文件写入
/home/smoke/PycharmProjects/pythonProject/venv/bin/python /home/smoke/PycharmProjects/pythonProject/lean_python/configparser_module.py
Process finished with exit code 0
查看原配置文件和删除后的配置文件
smoke@smoke-GS70-2PC-Stealth:~/PycharmProjects/pythonProject/lean_python$ cat example.ini [DEFAULT] serveraliveinterval = 45 compression = yes compressionlevel = 9 forwardx11 = yes [bitbucket.org] user = hg [topsecret.server.com] host port = 50022 forwardx11 = no smoke@smoke-GS70-2PC-Stealth:~/PycharmProjects/pythonProject/lean_python$ cat i.cfg [DEFAULT] serveraliveinterval = 45 compression = yes compressionlevel = 9 forwardx11 = yes [bitbucket.org] user = hg
删除配置文件内容覆盖原文件内容
#!/usr/bin/env python3.8
# __author: "smoke"
# date: 2021/1/21 下午10:10
import configparser
config = configparser.ConfigParser() #生成文件配置的对象
config.read('example.ini') #读取配置文件，做关联
config.remove_section('topsecret.server.com') #删除topsecret.server.com节点所有内容
config.write(open('example.ini',"w")) #重新创建一个新文件写入
/home/smoke/PycharmProjects/pythonProject/venv/bin/python /home/smoke/PycharmProjects/pythonProject/lean_python/configparser_module.py
Process finished with exit code 0
查看原配置文件
smoke@smoke-GS70-2PC-Stealth:~/PycharmProjects/pythonProject/lean_python$ cat example.ini [DEFAULT] serveraliveinterval = 45 compression = yes compressionlevel = 9 forwardx11 = yes [bitbucket.org] user = hg
读配置文件
#!/usr/bin/env python3.8
# __author: "smoke"
# date: 2021/1/21 下午10:10
import configparser
config = configparser.ConfigParser() #生成文件配置的对象
config.read('example.ini') #读取配置文件，做关联
print(config.has_section('topsecret.server.com')) #判断配置文件有没有topsecret.server.com字符串
/home/smoke/PycharmProjects/pythonProject/venv/bin/python /home/smoke/PycharmProjects/pythonProject/lean_python/configparser_module.py
False
Process finished with exit code 0
修改配置文件
#!/usr/bin/env python3.8
# __author: "smoke"
# date: 2021/1/21 下午10:10
import configparser
config = configparser.ConfigParser() #生成文件配置的对象
config.read('example.ini') #读取配置文件，做关联
config.set('bitbucket.org','user','smoke') #修改健的值
config.write(open('example.ini',"w"))
/home/smoke/PycharmProjects/pythonProject/venv/bin/python /home/smoke/PycharmProjects/pythonProject/lean_python/configparser_module.py
Process finished with exit code 0
查看原配置文件
smoke@smoke-GS70-2PC-Stealth:~/PycharmProjects/pythonProject/lean_python$ cat example.ini [DEFAULT] serveraliveinterval = 45 compression = yes compressionlevel = 9 forwardx11 = yes [bitbucket.org] user = smoke
删除配置文件内容
#!/usr/bin/env python3.8
# __author: "smoke"
# date: 2021/1/21 下午10:10
import configparser
config = configparser.ConfigParser() #生成文件配置的对象
config.read('example.ini') #读取配置文件，做关联
config.remove_option('bitbucket.org','user') #删除主健下的子健值
config.write(open('example.ini',"w"))
/home/smoke/PycharmProjects/pythonProject/venv/bin/python /home/smoke/PycharmProjects/pythonProject/lean_python/configparser_module.py
Process finished with exit code 0
查看原配置文件
smoke@smoke-GS70-2PC-Stealth:~/PycharmProjects/pythonProject/lean_python$ cat example.ini [DEFAULT] serveraliveinterval = 45 compression = yes compressionlevel = 9 forwardx11 = yes [bitbucket.org]
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