OK well there's a short answer and a longer answer here.
The short answer is that this is only a warning, not an "error" per se as it
occurs during garbage collection, and is entirely harmless. To totally
prevent them, probably ensuring that close() is called on all Session objects
before rem
Hi there,
We're running load tests against our Pylons application, which uses
SQLAlchemy to hit an Oracle DB.
Under load, we're starting to see errors pop up in our Apache logs:
[Mon Aug 29 13:39:59 2011] [error] Exception KeyError:
KeyError((, (631,)),) in > ignored
[Mon Aug 29 13:39:59 2011] [
This should work
subq = sess.query(func.count('*').label('countall')).\
select_from(FilmParticipation).subquery()
qry = sess.query(FilmParticipation.PartType,
func.count(1).label('Amount'),
((100*func.count(1)) / subq.c.countall)).\
I'm trying to construct a query in sqlalchemy similiar to this:
SELECT FilmParticipation.PartType, COUNT(*) AS Amount,
100*COUNT(*) /(SELECT count(*) FROM FilmParticipation) AS
Percentage_of_Total
FROM FilmParticipation
GROUP BY FilmParticipation.PartType;
I create a subquery for the nested sel
The declared_attr attributes are called by the metaclass for IceCream before
the creation of the IceCream class is complete, and therefore available in the
module namespace, so you need to rely on cls to get at the appropriate
contextbut if you want Edible, you're probably best saying that
Hi, I'm trying to call the base class attributes from a declared_attr
definition.
Something like:
class Edible(Base):
__tablename__ = 'edible'
brand = Column(String(20), primary_key=True)
edible_type = Column(String(20), primary_key=True)
__mapper_args__ = {'polymorphic_on': edib
