On Friday, 9 November 2012 00:31:39 UTC+1, Russell Keith-Magee wrote:
> If you can show a clear difference in behaviour between 1.3 and 1.4, then
> you've definitely found a bug. If you can log this in Trac (and mark it as
> a release blocker, since it's a change in behaviour), we can investigate
> further.
>
> Yours,
> Russ Magee %-)
>
I've traced the change back, but it doesn't seem to be introduced at 1.4.
On 1.2, this works:
C:\Dev\django\bugs>manage.py shell
Python 2.7.3 (default, Apr 10 2012, 23:31:26) [MSC v.1500 32 bit (Intel)]
on win32
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>> from bugtest.models import *
>>> crash()
[]
>>> import django
>>> django.VERSION
(1, 2, 0, 'final', 0)
>>>
On 1.3.4:
C:\Dev\django\bugs>manage.py shell
Python 2.7.3 (default, Apr 10 2012, 23:31:26) [MSC v.1500 32 bit (Intel)]
on win32
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>> from bugtest.models import *
>>> crash()
Traceback (most recent call last):
File "<console>", line 1, in <module>
File "C:\Dev\django\bugs\bugtest\models.py", line 16, in crash
print books
File
"C:\Dev\Python27\lib\site-packages\django-1.3.4-py2.7.egg\django\db\models\query.py",
line 69, in __repr__
data = list(self[:REPR_OUTPUT_SIZE + 1])
File
"C:\Dev\Python27\lib\site-packages\django-1.3.4-py2.7.egg\django\db\models\query.py",
line 84, in __len__
self._result_cache.extend(self._iter)
File
"C:\Dev\Python27\lib\site-packages\django-1.3.4-py2.7.egg\django\db\models\query.py",
line 273, in iterator
for row in compiler.results_iter():
File
"C:\Dev\Python27\lib\site-packages\django-1.3.4-py2.7.egg\django\db\models\sql\compiler.py",
line 680, in results
_iter
for rows in self.execute_sql(MULTI):
File
"C:\Dev\Python27\lib\site-packages\django-1.3.4-py2.7.egg\django\db\models\sql\compiler.py",
line 735, in execute
_sql
cursor.execute(sql, params)
File
"C:\Dev\Python27\lib\site-packages\django-1.3.4-py2.7.egg\django\db\backends\util.py",
line 34, in execute
return self.cursor.execute(sql, params)
File
"C:\Dev\Python27\lib\site-packages\django-1.3.4-py2.7.egg\django\db\backends\postgresql_psycopg2\base.py",
line 4
4, in execute
return self.cursor.execute(query, args)
DatabaseError: syntax error at or near ")"
LINE 1: ...ugtest_book" WHERE "bugtest_book"."author_id" IN () LIMIT 21
^
>>> import django; django.VERSION
(1, 3, 4, 'final', 0)
It's also database dependent, I couldn't reproduce the issue with SQLite.
I've created a ticket, https://code.djangoproject.com/ticket/19263, but
I've no idea how to classify it.
Thanks in advance for looking at this,
Chi Ho Kwok
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