1.基本的读取配置文件
2.基本的写入配置文件
3.基本例子
test.conf
1 2 3 4 5 6 7 8 9 | [sec_a] a_key1 = 20 a_key2 = 10 [sec_b] b_key1 = 121 b_key2 = b_value2 b_key3 = $r b_key4 = 127.0.0.1 |
parse_test_conf.py
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | import ConfigParser cf = ConfigParser.ConfigParser() #read config cf.read( "test.conf" ) # return all section secs = cf.sections() print 'sections:' , secs opts = cf.options( "sec_a" ) print 'options:' , opts kvs = cf.items( "sec_a" ) print 'sec_a:' , kvs #read by type str_val = cf.get( "sec_a" , "a_key1" ) int_val = cf.getint( "sec_a" , "a_key2" ) print "value for sec_a's a_key1:" , str_val print "value for sec_a's a_key2:" , int_val #write config #update value cf. set ( "sec_b" , "b_key3" , "new-$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" )) |
得到终端输出:
1 2 3 4 5 | 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
1 2 3 4 5 6 7 8 9 10 11 12 13 | [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.Python的ConfigParser Module中定义了3个类对INI文件进行操作。分别是RawConfigParser、ConfigParser、SafeConfigParser。RawCnfigParser是最基础的INI文件读取类,ConfigParser、SafeConfigParser支持对%(value)s变量的解析。
设定配置文件test2.conf
1 2 3 4 | [portal] url = http: // %(host)s:%(port)s /Portal host = localhost port = 8080 |
使用RawConfigParser:
1 2 3 4 5 6 7 8 9 10 11 | import ConfigParser cf = ConfigParser.RawConfigParser() print "use RawConfigParser() read" cf.read( "test2.conf" ) print cf.get( "portal" , "url" ) print "use RawConfigParser() write" cf. set ( "portal" , "url2" , "%(host)s:%(port)s" ) print cf.get( "portal" , "url2" ) |
得到终端输出:
1 2 3 4 | use RawConfigParser() read http: // %(host)s:%(port)s /Portal use RawConfigParser() write %(host)s:%(port)s |
改用ConfigParser:
1 2 3 4 5 6 7 8 9 10 11 | import ConfigParser cf = ConfigParser.ConfigParser() print "use ConfigParser() read" cf.read( "test2.conf" ) print cf.get( "portal" , "url" ) print "use ConfigParser() write" cf. set ( "portal" , "url2" , "%(host)s:%(port)s" ) print cf.get( "portal" , "url2" ) |
得到终端输出:
1 2 3 4 | use ConfigParser() read http: //localhost :8080 /Portal use ConfigParser() write localhost:8080 |
改用SafeConfigParser:
1 2 3 4 5 6 7 8 9 10 11 | import ConfigParser cf = ConfigParser.SafeConfigParser() print "use SafeConfigParser() read" cf.read( "test2.conf" ) print cf.get( "portal" , "url" ) print "use SateConfigParser() write" cf. set ( "portal" , "url2" , "%(host)s:%(port)s" ) print cf.get( "portal" , "url2" ) |
得到终端输出(效果同ConfigParser):
1 2 3 4 | use SafeConfigParser() read http: //localhost :8080 /Portal use SateConfigParser() write localhost:8080 |
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