[Zope3-dev] Bytes versus ASCII

Egon Frerich e.frerich at nord-com.net
Fri Feb 3 04:00:44 EST 2006

Hash: SHA1

Gary Poster schrieb am 27.01.2006 21:40:

> On Jan 27, 2006, at 5:16 AM, Christian Theune wrote:
>> Hi,
>> (this is about zope.schema)
>> I assumed that the fields Bytes and ASCII have some distinction. The
>> ASCII field explicitly checks for every character to have an ordinal
>> value lower than 127.
>> 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.

But zcml needs two types:
- - unicode for title and description parameters (what is not the case in
the actual version)
- - bytes elsewere.


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