Re: [Configobj-develop] Setting values for interpolation at runtime

[Nicola L. <ni...@te...>]

Michael Holzt wrote:
> I have severe problems getting interpolation work for me. I have a 
> config file with e.g. the following content:
> 
> | [object]
> | field1: test test test %(uid)s

The ':' keyword/value separator character is not allowed by ConfigObj, only
the '=' one is.


> The uid-value is not defined in the config file but shall be set on
> runtime. I can't figure out how to set the value, i always end up 
> with 'MissingInterpolationOption' or other errors (e.g. KeyError).
> 
> I tried for example config['DEFAULT']['uid'] = 'user' (KeyError),
> config['uid'] = 'user' (MissingInterpolationOption). I'm sure i
> make a simple mistake, but i can't figure it out. Some help would
> be appreciated.

The following code uses the SVN repo, the interpolation logic changed from
v.4.3.2 .

>>> from pythonutils import configobj
>>> cfgList = ['[object]', 'field1 = test test test %(uid)s']
>>> cfg = configobj.ConfigObj(cfgList, interpolation = 'ConfigParser')
>>> cfg['object']['field1']
Traceback (most recent call last):
    ...
    raise MissingInterpolationOption(key)
pythonutils.configobj.MissingInterpolationOption: missing option "uid"
in interpolation.
>>> cfg['DEFAULT'] = {}
>>> cfg['DEFAULT']['uid'] = 'outer_default'
>>> cfg['object']['field1']
'test test test outer_default'
>>> cfg['uid'] = 'outer'
>>> cfg['object']['field1']
'test test test outer'
>>> cfg['object']['DEFAULT']['uid'] = 'inner_default'
>>> cfg['object']['field1']
'test test test inner_default'
>>> cfg['object']['uid'] = 'inner'
>>> cfg['object']['field1']
'test test test inner'


-- 
Nicola Larosa - http://www.tekNico.net/

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