no, you'd need to produce a standalone, reproducing test case, thanks.

On Mar 12, 2014, at 11:51 AM, Ben Boule <b...@cloudlock.com> wrote:

> Hi Michael,
> 
> Is there any more information about this issue?   I think I may be running 
> into this problem, but I do not see any difference using the latest versions 
> of SQLAlchemy (0.8.5 and 0.9.3), the workaround does not seem to help, and I 
> can't find anything in the SQLAlchemy bitbucket bug tracking system that has 
> anything to do with this purported issue.
> 
> Thank you,
> Ben Boule
> 
> On Wednesday, February 19, 2014 1:54:10 PM UTC-5, Michael Bayer wrote:
> 
> On Feb 19, 2014, at 1:28 PM, al...@bitcredits.io wrote:
> 
>> Hi there,
>> 
>> I've been hitting an intermittent bug with SQLAlchemy/PostgreSQL using an 
>> HSTORE column.  Some times, when I restart my process (pyramid over gevent 
>> over chaussette), I get a spew of such errors... some other time, everything 
>> goes just fine.
>> 
>> It seems this bug hasn't been documented anywhere, or at least the error I 
>> get wasn't reported.
>> 
>> If you guys have any insight at all that would help me out in my search for 
>> the bug, I'd be eternally grateful.  Here is the traceback:
> 
> if you're on 0.8.4 or any 0.9, there is a bug fix going out today that is 
> very likely part of this, has to do with the engine determining if HSTORE 
> support is turned on.
> 
> Assuming this is your issue, a workaround would be:
> 
> eng = create_engine(...)
> 
> conn = eng.connect()
> conn.close()
> 
> before any other use of that engine occurs.  this will ensure that the 
> correct info about HSTORE is determined up front.
> 
> 
> 
> 
> 
> 
>> 
>>   File "/home/abourget/build/bitc/Bitc/bitc/api.py", line 126, in 
>> website_from_origin
>>     website = Website.get_by_host(origin)
>>   File "/home/abourget/build/bitc/Bitc/bitc/models.py", line 299, in 
>> get_by_host
>>     Website.deleted == False).first()
>>   File 
>> "/home/abourget/build/bitc/env/local/lib/python2.7/site-packages/sqlalchemy/orm/query.py",
>>  line 2320, in first
>>     ret = list(self[0:1])
>>   File 
>> "/home/abourget/build/bitc/env/local/lib/python2.7/site-packages/sqlalchemy/orm/query.py",
>>  line 2187, in __getitem__
>>     return list(res)
>>   File 
>> "/home/abourget/build/bitc/env/local/lib/python2.7/site-packages/sqlalchemy/orm/loading.py",
>>  line 72, in instances
>>     rows = [process[0](row, None) for row in fetch]
>>   File 
>> "/home/abourget/build/bitc/env/local/lib/python2.7/site-packages/sqlalchemy/orm/loading.py",
>>  line 451, in _instance
>>     populate_state(state, dict_, row, isnew, only_load_props)
>>   File 
>> "/home/abourget/build/bitc/env/local/lib/python2.7/site-packages/sqlalchemy/orm/loading.py",
>>  line 305, in populate_state
>>     populator(state, dict_, row)
>>   File 
>> "/home/abourget/build/bitc/env/local/lib/python2.7/site-packages/sqlalchemy/orm/strategies.py",
>>  line 154, in fetch_col
>>     dict_[key] = row[col]
>>   File 
>> "/home/abourget/build/bitc/env/local/lib/python2.7/site-packages/sqlalchemy/dialects/postgresql/hstore.py",
>>  line 291, in process
>>     return _parse_hstore(value.decode(encoding))
>> AttributeError: 'dict' object has no attribute 'decode'
>> 
>> Just for little context, models.py:299 in full is:
>>         website = db.query(Website).filter(Website.domain == host,
>>                                             Website.deleted == False).first()
>> 
>> There is one field on Website, declared as such:
>> 
>>     data_apis = Column(MutableDict.as_mutable(HSTORE), default=dict)
>> 
>> perhaps that last default=dict would induce such a problem ?  I'll try 
>> investigating that path.
>> 
>> thanks for any help!
>> 
>> Alexandre
>> 
>> 
>> 
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