python configparser模块

 1 import configparser
 2 
 3 
 4 """
 5 sections() 返回所有的section
 6 has_section(section) 判断是否有指定的section
 7 has_option(section, option) 判断是否有指定的section中的option
 8 options(section) 返回指定section中的所有option的列表
 9 read(filenames, encoding=None) 给定文件名，读配置文件
10 read_file(f, filename=None) 给定文件描述符，读配置文件
11 read_string(string) 从字符串中读取配置文件
12 read_dict(dictionary) 从字典中读取配置文件
13 get(section, option, raw=False, vars=None, fallback=_UNSET) 读取指定的sention中的option内容，string
14 getint(section, options, raw=False, vars=None, fallback=_UNSET) 同get，结果转int
15 getfloat(section, options, raw=False, vars=None, fallback=_UNSET) 同get，结果转float
16 getboolean(section, options, raw=False, vars=None, fallback=_UNSET) 同get，结果转bool
17 items(section=_UNSET, raw=False, vars=None) 给section返回(name, value)，否则(section_name, section_proxy)
18 remove_section(section) 删除section
19 remove_option(section, option) 删除指定section的option
20 set(section, option, value) 设置option
21 write(fp, space_around_delimiters=True) 写配置文件
22 """
23 
24 
25 def write_config(filename):
26     config = configparser.ConfigParser()
27     # set db
28     section_name = 'db'
29     config.add_section(section_name)
30     config.set(section_name, 'dbname', 'MySQL')
31     config.set(section_name, 'host', '127.0.0.1')
32     config.set(section_name, 'port', '80')
33     config.set(section_name, 'password', '123456')
34     config.set(section_name, 'databasename', 'test')
35 
36     # set app
37     section_name = 'app'
38     config.add_section(section_name)
39     config.set(section_name, 'loggerapp', '192.168.20.2')
40     config.set(section_name, 'reportapp', '192.168.20.3')
41 
42     # write to file
43     with open(filename, 'a') as fd:
44         config.write(fd)
45 
46 
47 def update_config(filename, section, **kwargs):
48     config = configparser.ConfigParser()
49     config.read(filename)
50     # print(config.sections())
51     for section in config.sections():
52         print("[", section, "]")
53         items = config.items(section)
54         for item in items:
55             print("\t", item[0], " = ", item[1])
56     if config.has_option("db", "dbname"):
57         config.set("db", "dbname", "11")
58         print("...............")
59     for key in kwargs:
60         print("\t", key, " = ", kwargs[key])
61         if config.has_option(section, key):
62             config.set(section, key, kwargs[key])
63             print("...............")
64 
65     with open(filename, 'r+') as fd:
66         config.write(fd)
67 
68 
69 if __name__ == '__main__':
70     file_name = 'test.conf'
71     write_config(file_name)
72     update_config(file_name, 'app', reportapp='192.168.100.100')