python之日常开发常用库

1. 配置文件解析（configobj）

pip install configobj

基本使用：

　　配置文件

[server]
name = zbj
port = 9000
 
[home]
# 注释
area = huizhou

　　示例：

from configobj import ConfigObj


# 实例化一个Configobj对象，给ConfigObj一个配置文件的路径，然后通过字典来访问成员，子段也是一个字典
cfg_path = "./test.cfg"
config = ConfigObj(cfg_path, encoding='UTF-8')

# 读配置文件
print(config['server'])  # {'name': 'zbj', 'port': '9000'}
print(config['server']['name'])  # zbj


#修改配置

from configobj import ConfigObj


cfg_path = "./test.cfg"
config = ConfigObj(cfg_path, encoding='UTF-8')
config['server']['name'] = "clj"
# 修改完记得write写入配置文件
config.write()


# 添加新项

from configobj import ConfigObj


cfg_path = "./test.cfg"
config = ConfigObj(cfg_path, encoding='UTF-8')
config['school'] = {}
config['school']['class'] = "three"
# 只要进行了修改(包括新增删除等)的操作，记得write修改
config.write()


# 删除配置项

from configobj import ConfigObj


cfg_path = "./test.cfg"
config = ConfigObj(cfg_path, encoding='UTF-8')
del config['school']
del config['server']['port']
config.write()


# 将配置文件内容写入不同文件

from configobj import ConfigObj


cfg_path = "./test.cfg"
config = ConfigObj(cfg_path, encoding='UTF-8')
config.filename = "./test.ini"
config.write()
# 此时会新建一个test.ini文件，然后会将test.cfg的内容写入到test.ini文件


# 创建新的配置文件

from configobj import ConfigObj


# 实例化一个ConfigObj对象
config = ConfigObj()
# filename指定新创建的文件路径和名称
config.filename = './my_cfg.ini'

# 写入配置信息
config['people'] = {}
config['people']['name'] = 'zzbj'
config['people']['age'] = '18'
config.write()