python - SQLAlchemy returns an integer -

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i accessing database using sqlalchemy. when try filter table using bunch of public , private keys attribute error saying 'int' object has no attribute 'date'.

sometimes, able filter results once , when filter called again, crashes giving me same error. problem of sqlalchemy or pydev?

below snippet of filter.

randomize_query(session('test').query(tablename).filter(tablename.field1 == criteria, tablename.field2 == 2).order_by(desc(tablename.field3))).first()

the full traceback below 

  file "c:\python27\lib\site-packages\sqlalchemy\orm\query.py", line 2145, in first     ret = list(self[0:1])   file "c:\python27\lib\site-packages\sqlalchemy\orm\query.py", line 2012, in __getitem__     return list(res)   file "c:\python27\lib\site-packages\sqlalchemy\orm\loading.py", line 72, in instances     rows = [process[0](row, none) row in fetch]   file "c:\python27\lib\site-packages\sqlalchemy\orm\loading.py", line 447, in _instance     populate_state(state, dict_, row, isnew, only_load_props)   file "c:\python27\lib\site-packages\sqlalchemy\orm\loading.py", line 301, in    populate_state     populator(state, dict_, row)   file "c:\python27\lib\site-packages\sqlalchemy\orm\strategies.py", line 150, in fetch_col     dict_[key] = row[col]   file "c:\python27\lib\site-packages\sqlalchemy\engine\result.py", line 89, in __getitem__     return processor(self._row[index])   file "c:\python27\lib\site-packages\sqlalchemy\dialects\oracle\cx_oracle.py", line 250, in process     return value.date() attributeerror: 'int' object has no attribute 'date'

the exception thrown when result set loaded , sqlalchemy wants populate result objects. 1 column qualified date type, oracle result set giving integer instead.

the cx_oracle library convert oracle-supplied native date column value python datetime.datetime object. however, not happening all rows here.

you'll need narrow down row or rows have column not being translated datetime object. find pattern in filters include or exclude these rows , narrow down can inspect database rows hand in different client.


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