Python模塊之: ConfigParser 配置文件讀取

http://zhangjunhd.blog.51cto.com/113473/348863?

http://docs.python.org/library/configparser.html?

http://www.linux-field.com/?p=437?

1.讀取配置文件

-read(filename)?直接讀取ini文件內容 -sections()?得到所有的section，并以列表的形式返回 -options(section)?得到該section的所有option -items(section)?得到該section的所有鍵值對 -get(section,option)?得到section中option的值，返回為string類型 -getint(section,option)?得到section中option的值，返回為int類型 2.寫入配置文件 -add_section(section)?添加一個新的section -set( section, option, value)?對section中的option進行設置 ?????????需要調用write將內容寫入配置文件。 3.例子 test.conf

[sec_a] a_key1 = 20 a_key2 = 10 [sec_b] b_key1 = 121 b_key2 = b_value2 b_key3 = $r b_key4 = 127.0.0.1

parse_test_conf.py

import?ConfigParser cf = ConfigParser.ConfigParser() #read config cf.read("test.conf") # return all section secs = cf.sections() print?'sections:', secs opts = cf.options("sec_a") print?'options:', opts kvs = cf.items("sec_a") print?'sec_a:', kvs #read by type str_val = cf.get("sec_a",?"a_key1") int_val = cf.getint("sec_a",?"a_key2") print?"value for sec_a's a_key1:", str_val print?"value for sec_a's a_key2:", int_val #write config #update value cf.set("sec_b",?"b_key3",?"new-$r") #set a new value cf.set("sec_b",?"b_newkey",?"new-value") #create a new section cf.add_section('a_new_section') cf.set('a_new_section',?'new_key',?'new_value') #write back to configure file cf.write(open("test.conf",?"w"))

print sections: ['sec_b', 'sec_a'] options: ['a_key1', 'a_key2'] sec_a: [('a_key1', "i'm value"), ('a_key2', '22')] value for sec_a's a_key1: i'm value value for sec_a's a_key2: 22 更新后的test.conf

[sec_b] b_newkey = new-value b_key4 = 127.0.0.1 b_key1 = 121 b_key2 = b_value2 b_key3 = new-$r [sec_a] a_key1 = i'm value a_key2 = 22 [a_new_section] new_key = new_value

4.可能拋出的異常

exception?NoSectionError Exception raised when a specified section is not found. exception?DuplicateSectionError Exception raised if add_section() is called with the name of a section that is already present. exception?NoOptionError Exception raised when a specified option is not found in the specified section. exception?InterpolationError Base class for exceptions raised when problems occur performing string interpolation. exception?InterpolationDepthError Exception raised when string interpolation cannot be completed because the number of iterations exceeds MAX_INTERPOLATION_DEPTH. Subclass of InterpolationError. exception?InterpolationMissingOptionError Exception raised when an option referenced from a value does not exist. Subclass of InterpolationError. New in version 2.3. exception?InterpolationSyntaxError Exception raised when the source text into which substitutions are made does not conform to the required syntax. Subclass of InterpolationError. New in version 2.3. exception?MissingSectionHeaderError Exception raised when attempting to parse a file which has no section headers. exception?ParsingError Exception raised when errors occur attempting to parse a file.

轉載于:https://blog.51cto.com/wiigood/1008063

總結

以上是生活随笔為你收集整理的python config的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。