Daniel Urban <[email protected]> added the comment:
The problem seems to be that you're calling Decimal.from_float with a Decimal
instance, not a float. I'm not sure that should even work. The Decimal
constructor can create a decimal from an other decimal.
Your suggested solution probably would solve this exception, but I'm not sure
it would be the good solution. This way when creating a decimal from another
decimal with from_float (which doesn't makes much sense, I think) could result
in a loss of precision:
>>> Decimal(Decimal('0.999999999999999999999'))
Decimal('0.999999999999999999999')
>>>
>>> math.fabs(Decimal('0.999999999999999999999'))
1.0
>>>
----------
nosy: +durban
type: crash -> behavior
versions: +Python 3.1, Python 3.2, Python 3.3
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<http://bugs.python.org/issue11680>
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