configobj-develop

[Configobj-develop] Default Values

[Mark L. <mw...@po...>]

According to the docs:
http://www.voidspace.org.uk/python/configobj.html#default-values
"You can set a default value in your check. If the value is missing from 
the config file then this value will be used instead."

I think I'm making an incorrect assumption about retrieving default 
values from the dict, as illustrated here:

File test.spec containing only:
key1 = integer(0, 30, default=15)
key2 = integer(default=15)

File test.conf containing only:
key1 = 5

 >>> c = ConfigObj( 'test.conf', configspec='test.spec' )
 >>> c
{'key1': '5'}
 >>> c.configspec
{'key2': 'integer(default=15)', 'key1': 'integer(0, 30, default=15)'}
 >>> c['key1']
'5'
 >>> c['key2']
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "C:\Python24\Lib\site-packages\configobj.py", line 337, in 
__getitem__
    val = dict.__getitem__(self, key)
KeyError: 'key2'

Shouldn't this return the default value, in this case 15? Is there a 
different method I should be using for retrieving values? I can't find 
anything in the documentation or via introspection. I specifically want 
the defaults specified in an external file and not in the code using 
something like c.get('key2',15).

I'm using configobj version 4.2.0beta2

Cheers,
-Mark

Re: [Configobj-develop] Default Values

[Fuzzyman <fuz...@vo...>]

Mark Leonard wrote:
> According to the docs:
> http://www.voidspace.org.uk/python/configobj.html#default-values
> "You can set a default value in your check. If the value is missing 
> from the config file then this value will be used instead."
>
> I think I'm making an incorrect assumption about retrieving default 
> values from the dict, as illustrated here:
>
> File test.spec containing only:
> key1 = integer(0, 30, default=15)
> key2 = integer(default=15)
>
> File test.conf containing only:
> key1 = 5
>
> >>> c = ConfigObj( 'test.conf', configspec='test.spec' )
> >>> c
> {'key1': '5'}
> >>> c.configspec
> {'key2': 'integer(default=15)', 'key1': 'integer(0, 30, default=15)'}
> >>> c['key1']
> '5'
> >>> c['key2']
> Traceback (most recent call last):
>  File "<stdin>", line 1, in ?
>  File "C:\Python24\Lib\site-packages\configobj.py", line 337, in 
> __getitem__
>    val = dict.__getitem__(self, key)
> KeyError: 'key2'
>
> Shouldn't this return the default value, in this case 15? Is there a 
> different method I should be using for retrieving values? I can't find 
> anything in the documentation or via introspection. I specifically 
> want the defaults specified in an external file and not in the code 
> using something like c.get('key2',15).
>
Your logic is correct - but missing one step.

The default values are filled in by the validation process (as is the 
type conversion to integers).

 >>> from configobj import ConfigObj
 >>> from validate import Validator
 >>> c = ConfigObj( 'test.conf', configspec='test.spec' )
 >>> c
{'key1': '5'}
 >>> c.configspec
{'key2': 'integer(default=15)', 'key1': 'integer(0, 30, default=15)'}
 >>> v = Validator()
 >>> test = c.validate(v)
 >>> if test != True:
...    print 'Something went wrong ;-)'
 >>> c['key2']
15

Untested, but should work. ;-)

Let me know if it doesn't.

> I'm using configobj version 4.2.0beta2
>
I changed a lot in the implementation of unicode from 4.2.0 beta 2 to 
the released version, as well as other tinkerings. (See the homepage 
http://www.voidspace.org.uk/python/configobj.html for a download link). 
I would highly recommend using the latest version.

All the best,

Fuzzyman
http://www.voidspace.org.uk/python/index.shtml

> Cheers,
> -Mark
>
>
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Re: [Configobj-develop] Default Values

[Mark L. <mw...@po...>]

Fuzzyman wrote:
> Untested, but should work. ;-)
It does, thanks for the help!

> I changed a lot in the implementation of unicode from 4.2.0 beta 2 to 
> the released version, as well as other tinkerings. (See the homepage 
> http://www.voidspace.org.uk/python/configobj.html for a download link). 
> I would highly recommend using the latest version.

It seems I am indeed using the latest version, obtained from this link:
http://www.voidspace.org.uk/cgi-bin/voidspace/downman.py?file=configobj-4.2.0.zip

However, in configobj.py, line 106:
__version__ = '4.2.0beta2'

Cheers,
-Mark

Re: [Configobj-develop] Default Values

[Fuzzyman <fuz...@vo...>]

Mark Leonard wrote:
> Fuzzyman wrote:
>> Untested, but should work. ;-)
> It does, thanks for the help!
>
Good.

>> I changed a lot in the implementation of unicode from 4.2.0 beta 2 to 
>> the released version, as well as other tinkerings. (See the homepage 
>> http://www.voidspace.org.uk/python/configobj.html for a download 
>> link). I would highly recommend using the latest version.
>
> It seems I am indeed using the latest version, obtained from this link:
> http://www.voidspace.org.uk/cgi-bin/voidspace/downman.py?file=configobj-4.2.0.zip 
>
>
> However, in configobj.py, line 106:
> __version__ = '4.2.0beta2'
>
Ah.... oops. :-)

I'll correct that tonight.

Thanks

Fuzzyman
http://www.voidspace.org.uk/python/index.shtml

> Cheers,
> -Mark
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by xPML, a groundbreaking scripting 
> language
> that extends applications into web and mobile media. Attend the live 
> webcast
> and join the prime developer group breaking into this new coding 
> territory!
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642
> _______________________________________________
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> Con...@li...
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>