[Grok-dev] Re: Understanding unicode
Philipp von Weitershausen
philipp at weitershausen.de
Fri Aug 31 16:32:29 EDT 2007
Jan Ulrich Hasecke wrote:
> zope.configuration.xmlconfig.ZopeXMLConfigurationError: File
> "/Users/juh/GrokZoo/parts/app/site.zcml", line 4.0-4.29
> ZopeXMLConfigurationError: File
> "/Users/juh/GrokZoo/src/grokzoo/configure.zcml", line 4.2-4.27
> UnicodeEncodeError: 'ascii' codec can't encode character u'\xe4' in
> position 7: ordinal not in range(128)
I think I understand what the problem is. The error message says it
can't *encode* a unicode character. That means it's trying to conver it
to a bytes string (not the other way around).
I suspect this is a limiatation of the Choice field and the 'values'
parameter. It wants to be able to get a bytes representation of all
items in the choice. Trying to use the ascii encoding, it obviously
fails. This can be seen as a bug of the Choice field.
A workaround would be to use a source (or vocabulary) where the value of
can be different from the display item and the token used in forms.
Christian already pointed out how to write a simple source with
http://worldcookery.com -- Professional Zope documentation and training
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