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On 04/26/2012 02:34 PM, Tres Seaver wrote:
> On 04/26/2012 01:50 PM, Brian Sutherland wrote:
>> On Thu, Apr 26, 2012 at 12:06:13PM -0400, Tres Seaver wrote: On 
>> 04/26/2012 04:39 AM, Brian Sutherland wrote:
>>>>> On Thu, Apr 12, 2012 at 07:37:46PM -0400, Tres Seaver wrote:
>>>>>> Also, do your branches still pass tests on 3.2.x?  I'm sort
>>>>>> of keen to see both zope.schema and zope.configuration join
>>>>>> the "2to3-free" camp with zope.event, zope.interface, 
>>>>>> zope.i18nmessageid, and zope.exceptions (yes, 
>>>>>> zope.configuration, I'm looking at you next).
>>>>> 
>>>>> I see you've started doing this in a better and more rigorous 
>>>>> way than I was. So I'm going to abandon my plans to merge in 
>>>>> favour of your branches.
>>>>> 
>>>>> I'd still urge you to have a look at my zope.schema branch, 
>>>>> which I think solves a real problem with URI fields and
>>>>> Python 3. The patch is pretty small.
> 
>> My zope.schema branch is largely focused on improving the unittest 
>> coverage, while also making the package work with Python 3.2 (i.e., 
>> not relying on 3.3's restoration of unicode literals).
> 
>> I would be glad to look at your branch;  I had already considered 
>> making the "native string" fields APIs.  I'm not sure that I agree 
>> that the ASCII / URI / Id / DottedName fields should have native 
>> string as its type:  can you help by elaborating there?
> 
>>> For DottedName we're basically forced to use native strings as
>>> you can import modules with unicode names on python 3:
> 
>>>>>> from 漢語 import Español print(Español)
>>> <class '漢語.Español'>
> 
>>> Id is either a URI or a DottedName. So it must, like DottedName, 
>>> also be a native string.
> 
>>> As for URI, python 3 library functions seem to not care, so we can
>>>  choose either:
> 
>>>>>> from urllib.parse import urlparse 
>>>>>> urlparse('http://www.example.com/unicode')
>>> ParseResult(scheme='http', netloc='www.example.com', 
>>> path='/unicode', params='', query='', fragment='')
>>>>>> urlparse(b'http://www.example.com/bytes')
>>> ParseResultBytes(scheme=b'http', netloc=b'www.example.com', 
>>> path=b'/bytes', params=b'', query=b'', fragment=b'')
> 
>>> But, for consistency's sake, URI, Id and DottedName should be the 
>>> same. That makes the best choice for URI a native string.
> 
>>> Another more practical argument is that having URI be a "native 
>>> string" made the porting of zope.configuration to python 3 much 
>>> easier. There were a few nasty bugs when trying it with URI as 
>>> bytes.
> 
>>> I have no strong argument for ASCII.
> 
>>> FWIW, here's the original discussion on porting zope.schema: 
>>> https://mail.zope.org/pipermail/zope-dev/2011-October/043540.html
> 
> Thanks very much for the explanation.  I will plan to merge in your 
> changes in my branch ASAP.


Done and merged to the trunk with my 'test_cleanup' branch.


Tres.
- -- 
===================================================================
Tres Seaver          +1 540-429-0999          tsea...@palladion.com
Palladion Software   "Excellence by Design"    http://palladion.com
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