python标准库configparser配置解析器

 1 >>> from configparser import ConfigParser, ExtendedInterpolation

 2 >>> parser = ConfigParser(interpolation=ExtendedInterpolation())

 3 >>> # the default BasicInterpolation could be used as well

 4 >>> parser.read_string("""

 5 ... [DEFAULT]

 6 ... hash = #

 7 ...

 8 ... [hashes]

 9 ... shebang =

10 ...   ${hash}!/usr/bin/env python   #用ExtendedInterpolation()方法把#插入到多行values的开头,就可以把#保存下来，而不是被注释掉。

11 ...   ${hash} -*- coding: utf-8 -*-

12 ...

13 ... extensions =

14 ...   enabled_extension

15 ...   another_extension

16 ...   #disabled_by_comment

17 ...   yet_another_extension

18 ...

19 ... interpolation not necessary = if # is not at line start

20 ... even in multiline values = line #1

21 ...   line #2

22 ...   line #3

23 ... """)

24 >>> print(parser[‘hashes‘][‘shebang‘])

25

26 #!/usr/bin/env python

27 # -*- coding: utf-8 -*-

28 >>> print(parser[‘hashes‘][‘extensions‘])

29

30 enabled_extension

31 another_extension

32 yet_another_extension

33 >>> print(parser[‘hashes‘][‘interpolation not necessary‘])

34 if # is not at line start

35 >>> print(parser[‘hashes‘][‘even in multiline values‘])

36 line #1

37 line #2

38 line #3

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