day22 Python configparser模块

# 将配置信息写入文件

import configparser

config = configparser.ConfigParser()

config['default'] = {
    "version": "v1.124",
    "session_timeout": 60,
    "keepalived": 120,
}

config['test-db1'] = {
    "host": "192.168.1.1",
    "port": 1916,
    "username": "root",
    "password": "123456"

}

config['test-db2'] = {
    "host": "192.168.1.2",
    "port": 1916,
    "username": "root",
    "password": "123456"

}

config['test-db3'] = {
    "host": "192.168.1.3",
    "port": 1916,
    "username": "root",
    "password": "123456"

}

f = open("db.config",mode="w",encoding="utf-8")

config.write(f)
f.flush()
f.close()



# 从配置文件中读取信息

import configparser

config = configparser.ConfigParser()

config.read("db.config")

print(config.sections()) # 获取所有的章节 ['default', 'test-db1', 'test-db2', 'test-db3']

print(config.get("default",'keepalived')) # 120 获取章节中的属性，默认所有章节都会继承default

print(config['test-db1']['host']) # 192.168.1.1

for k,v in config['test-db1'].items(): # 遍历章节
    print(k,v)
    
    
# 增加，删除操作

config.set("test-db1","host","1.1.1.1") # 临时修改，写入文件才能生效
print(config['test-db1']['host']) # 1.1.1.1

# config.remove_section("test-db3") # 删除章节
# print(config['test-db3']) # KeyError: 'test-db3'

config.remove_option("test-db3","host") # 删除属性
for k,v in config['test-db3'].items(): # 遍历章节
    print(k,v)

config.write(open("db.config",mode="w",encoding="utf-8")) # 写回配置文件