Please try out the dev tip, 0.7.3, which is at http://hg.sqlalchemy.org/sqlalchemy/archive/default.tar.gz . There's been a fix regarding attribute access upon objects that redefine __eq__(), which should never be called by SQLAlchemy and this looks like exactly that same issue.
On Oct 12, 2011, at 11:17 AM, Adrian wrote: > When I try to access a specific mapped attribute the error below is thrown > but only if I use a custom __eq__(). > > def __eq__(self, other): > ''' > ''' > return self.aromatic_ring_id == other.aromatic_ring_id > > When I print the type of both, the 'other' class is 'symbol': <class > 'credoscript.models.aromaticring.AromaticRing'> <class > 'sqlalchemy.util.langhelpers.symbol'> > > Any ideas what went wrong? > > --------------------------------------------------------------------------- > AttributeError Traceback (most recent call last) > > /home/adrian/<ipython console> in <module>() > > /usr/local/lib/python2.7/dist-packages/SQLAlchemy-0.7.2-py2.7-linux-x86_64.egg/sqlalchemy/orm/attributes.pyc > in __get__(self, instance, owner) > 166 return dict_[self.key] > 167 else: > --> 168 return self.impl.get(instance_state(instance),dict_) > 169 > 170 def create_proxied_attribute(descriptor): > > /usr/local/lib/python2.7/dist-packages/SQLAlchemy-0.7.2-py2.7-linux-x86_64.egg/sqlalchemy/orm/attributes.pyc > in get(self, state, dict_, passive) > 422 value = ATTR_EMPTY > 423 > --> 424 if value in (PASSIVE_NO_RESULT, NEVER_SET): > 425 return value > 426 elif value is ATTR_WAS_SET: > > /home/adrian/Software/credoscript/models/aromaticring.py in __eq__(self, > other) > 48 ''' > 49 print type(self), type(other) > ---> 50 return self.aromatic_ring_id == other.aromatic_ring_id > 51 > 52 def __ne__(self, other): > > AttributeError: 'symbol' object has no attribute 'aromatic_ring_id' > > > -- > You received this message because you are subscribed to the Google Groups > "sqlalchemy" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/sqlalchemy/-/3kqkVsvmxQ8J. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/sqlalchemy?hl=en. -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.
