[Zope3-dev] Bytes versus ASCII

[Christian Theune]

On Fri, 2006-01-27 at 15:40 -0500, Gary Poster wrote:
> > Bytes however does a cast in fromUnicode(u) that does str(u). This  
> > will
> > break if there are non-ascii characters in the unicode string.
> > Effectively this makes it an ASCII field as well.
> >
> > However, I don't know enough about the environment, so eventually this
> > is all good. When does the fromUnicode method get called? Everytime I
> > use this field through zope.app.form or zope.formlib?
> 
> I think it might be leveraged elsewhere, but the big client AFAIK is  
> zcml.

So. Hmm. It looks like there is no better way to do that eventually,
because the mapping from unicode space to some 8-bit space is pretty
ambigous. I wonder whether this should be stated somewhere around there
quite cleary, that you can only put in unicode into a bytes field when
it maps to ASCII.

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