Unsupported operator for Decimal: + (or -)

[Diez B. Roggisch]

Todd O'Bryan schrieb:
> This seems to have come up earlier...
> 
> http://mail.python.org/pipermail/python-list/2007-July/451187.html
> 
> but no resolution.
> 
> We're seeing the same thing. We're using Django's DecimalField type
> and when we try to add or subtract values--which should be
> decimal.Decimal objects--we occasionally get an error about the
> operator not being supported. It doesn't always happen and we can't
> seem to reproduce it when we try to.

Try putting an try/except clause around the problem that drops into the 
debugger:


try:
   foo = a - b
except TypeError:
   import pdb; pdb.set_trace()

Then you can see what a & b _really_ are.

Diez