Hi,
I use events for some of my models to trigger changes and so on. However,
one function needs to be triggered on very different events (attribute,
mapper). To make things easy, I wanted to use named arguments and implement
the correct logic to retrieve the values I needed. However, when I tried to
use it, I get below traceback:
File "[...]/lib/python2.7/site-packages/sqlalchemy/event/api.py", line
94, in decorate
listen(target, identifier, fn, *args, **kw)
File "[...]/lib/python2.7/site-packages/sqlalchemy/event/api.py", line
63, in listen
_event_key(target, identifier, fn).listen(*args, **kw)
File "[...]/lib/python2.7/site-packages/sqlalchemy/event/registry.py",
line 187, in listen
self.dispatch_target.dispatch._listen(self, *args, **kw)
TypeError: _listen() got an unexpected keyword argument 'named'
My version is 0.9.7, verified both with pip freeze and by importing
sqlalchemy and checking __version__. Everything runs in a virtualenv.
Here is the relevant code I use:
@event.listens_for(Model.my_attr, 'set', named=True)
def update_challenge_points(target, **kw):
pass
I don't know why this exception is triggered and cannot find anything on
google... I appreciate any help you can offer.
Regards,
Florian
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