Marc 'BlackJack' Rintsch <[EMAIL PROTECTED]> wrote:
> On Mon, 30 Jul 2007 03:36:33 -0700, Gilbert Fine wrote:
>
>> This is a very strange exception raised from somewhere in our
>> program. I have no idea how this happen. And don't know how to
>> reproduce. It just occurs from time to time.
>
> Maybe different `Decimal`\s? Here's how to reproduce such a
> traceback:
>
<snip>
Or even just one Decimal type but not one which supports subtraction:
>>> class Decimal(object):
pass
>>> a = Decimal()
>>> b = Decimal()
>>> a-b
Traceback (most recent call last):
File "<pyshell#4>", line 1, in <module>
a-b
TypeError: unsupported operand type(s) for -: 'Decimal' and 'Decimal'
Another option of course is that Decimal() did support substraction but
someone deleted it:
>>> from decimal import Decimal
>>> del Decimal.__sub__
>>> Decimal()-Decimal()
Traceback (most recent call last):
File "<pyshell#15>", line 1, in <module>
Decimal()-Decimal()
TypeError: unsupported operand type(s) for -: 'Decimal' and 'Decimal'
--
http://mail.python.org/mailman/listinfo/python-list
