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On 12/07/2012 01:52 AM, Marius Gedminas wrote:
>>> [3]    FAILED  winbot / zope.app.i18n_py_265_32 
>>> https://mail.zope.org/pipermail/zope-tests/2012-December/069796.html
>
>>> 
Error in test testNoTargetLanguage
(zope.app.i18n.tests.test_translationdomain.TestTranslationDomain)
> Traceback (most recent call last): File
> "c:\Python26_32\lib\unittest.py", line 279, in run testMethod() File
> "c:\eggs\zope.i18n-3.8.0-py2.6.egg\zope\i18n\tests\test_itranslationdomain.py",
> line 99, in testNoTargetLanguage eq(translate('short_greeting',
> context=context, default=42), 42) File
> "c:\buildslave\zope.app.i18n\build\src\zope\app\i18n\translationdomain.py",
> line 74, in translate catalog_names =
> self._catalogs.get(target_language, []) TypeError: Object has default
> comparison

Here, the 'target_langeage' returned by the negotiator is None, which the
OOBTree is refusing to treat as a key (because its comparison semantics
are undefined across process boundaries / Python versions)::

 >>> from BTrees.OOBTree import OOBTree
 >>> x = OOBTree()
 >>> x[None] = 1
 Traceback (most recent call last):
   File "<stdin>", line 1, in <module>
 TypeError: Object has default comparison

Such keys haven't been allowed since::

 r117933 | jim | 2010-10-26 17:14:00 -0400 (Tue, 26 Oct 2010) | 7 lines

 Bug Fixed
 - BTrees allowed object keys with insane comparison. (Comparison
   inherited from object, which compares based on in-process address.)
   Now BTrees raise TypeError is an attempt is made to save a key with
   comparison inherited from object. (This doesn't apply to old-style
   class instances.)




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