line 21 creates an AssociationBase passing two arguments to the constructor, but AssociationBase has no __init__ and accepts no arguments.
I'd strongly recommend using pdb to track down issues like these. On Oct 2, 2011, at 5:26 AM, Ahmed wrote: > I am looking at > http://www.sqlalchemy.org/trac/browser/examples/generic_associations/discriminator_on_association.py > and trying to adapt the example to one that is generic and can be > reused. So I attempted to abstract all the classes. However there > seems to be an error in the __new__ function of the creator object. > > CODE is here > http://pastebin.com/4DyK47r3 > > ERROR is here: > Traceback (most recent call last): > File "sqlalchemyex.py", line 136, in <module> > zip="95732") > File "<string>", line 4, in __init__ > File "/home/ahmed/dev/pyrenv/lib/python2.6/site-packages/ > SQLAlchemy-0.6.6-py2.6.egg/sqlalchemy/orm/state.py", line 111, in > initialize_instance > return manager.events.original_init(*mixed[1:], **kwargs) > File "/home/ahmed/dev/pyrenv/lib/python2.6/site-packages/ > SQLAlchemy-0.6.6-py2.6.egg/sqlalchemy/ext/declarative.py", line 1378, > in _declarative_constructor > setattr(self, k, kwargs[k]) > File "/home/ahmed/dev/pyrenv/lib/python2.6/site-packages/ > SQLAlchemy-0.6.6-py2.6.egg/sqlalchemy/ext/associationproxy.py", line > 195, in __set__ > setattr(obj, self.target_collection, creator(values)) > File "sqlalchemyex.py", line 28, in <lambda> > discriminator=discriminator) > TypeError: object.__new__() takes no parameters > > > Can anyone please help me understand what am I doing wrong? I guess if > I know what's causing the error, then the code after some polishing > will be a good candidate to include in the SQLalchemy recipes. > > Cheers, > Ahmed > http://stackoverflow.com/questions/7582861 > > -- > You received this message because you are subscribed to the Google Groups > "sqlalchemy" group. > To post to this group, send email to sqlalchemy@googlegroups.com. > To unsubscribe from this group, send email to > sqlalchemy+unsubscr...@googlegroups.com. > 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 sqlalchemy@googlegroups.com. To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en.
