Python parsing ini, conf, cfg files

1. Use the Configparser module that comes with Python:

#test. cfg file contents: [sec_a]a_key1 = 20a_key2 = 10[sec_b]b_key1 = 121b_key2 = B_value2b_key3 = $rb _key4 = 127.0.0.1

# -* - coding: utf-8 -* -import configparser# generating the Config object conf =  Configparser.configparser () #用config对象读取配置文件conf. Read ("Test.cfg") #以列表形式返回所有的sectionsections  =  Conf.sections () print  ' sections: ',  sections         # sections: [' sec_b ',  ' sec_a '] #得到指定section的所有optionoptions  = conf.options ("sec_a") print   ' options: ', options            #options:  [' a_key1 ',  ' A_key2 '] #得到指定section的所有键值对kvs  = conf.items ("sec_a") print  ' sec_a: ',  kvs                  #sec_ a: [(' a_key1 ',  '),  (' A_key2 ',  ')] #指定section, option Read value Str_val = conf.get (" Sec_a ", " A_key1 ") int_val = conf.getint (" Sec_a ", " A_key2 ") print " value for  Sec_a ' s a_key1: ",  str_val    #value  for sec_a ' s a_key1: 20print  "Value for sec_a ' s  a_key2: ", int_val    #value  for sec_a ' s a_key2: 10# write config file # Updates the value of the specified section,option conf.set ("Sec_b",  "B_key3",  "new-$r") #写入指定section增加新option和值conf. Set ("Sec_b",   "B_newkey",  "New-value") #增加新的sectionconf. Add_section (' a_new_section ') conf.set (' a_new_section '),   ' New_key ',  ' New_value ') #写回配置文件conf. Write (Open ("Test.cfg",  "W"))

2.C some questions about Onfigparser:

1, cannot be case sensitive.
2, the re-write INI file cannot retain the comments of the original INI file.
3, the re-write INI file cannot be kept in its original order.
4, nesting is not supported.
5, format verification is not supported.

Try the following:configobj module

#读文件from  configobj import ConfigObj      config =  Configobj (filename)       #      value1 =  config[' keyword1 ']      value2 = config[' keyword2 ']       #      section1 = config[' Section1 ']       value3 = section1[' Keyword3 ']       value4 = section1[' Keyword4 ']      #       # you could also write      value3 = config[ ' Section1 ' [' Keyword3 ']      value4 = config[' section1 '] [' KEYWORD4 ']           #写文件如下:from configobj import  Configobjconfig = configobj () config.filename = filename#config[' keyword1 '] = value1config[' keyword2 '] = value2#config[ ' Section1 '] = {}config[' section1 ' [' Keyword3 '] = value3config[' section1 ' [' Keyword4 ']  = value4#section2 = {     ' Keyword5 ': value5,      ' Keyword6 ': value6,     ' sub-section ': {          ' Keyword7 ':  value7        }}config[' Section2 ']  = section2#config[' Section3 '] = {}config[' section3 ' [' Keyword 8 '] = [ value8, value9, value10]config[' Section3 ' [' keyword 9 '] = [value11, value12,  VALUE13] #config. Write ()

Python parsing ini, conf, cfg files