Mike Howarth <[EMAIL PROTECTED]> writes:
> Basically I'm reducing an array of prices like so:
> >> subtotal = reduce(operator.add, itemprices)
>
> This gives me a string of '86.00.00'
You haven't shown what the input is; what is the value of 'itemprices'
before this line?
When I use floating-point numbers, I get this::
>>> import operator
>>> itemprices = [24.68, 12.34, 36.90]
>>> itemprices
[24.68, 12.34, 36.899999999999999]
>>> subtotal = reduce(operator.add, itemprices)
>>> subtotal
73.919999999999987
When I use the Decimal type, I get this::
>>> import operator
>>> from decimal import Decimal
>>> itemprices = [Decimal("24.68"), Decimal("12.34"), Decimal("36.93")]
[Decimal("24.68"), Decimal("12.34"), Decimal("36.93")]
>>> subtotal = reduce(operator.add, itemprices)
>>> subtotal
Decimal("73.95")
So I suspect your 'itemprices' sequence is composed of values of some
other type. Please show your equivalent of the above sessions so we
can see what's happening.
--
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`\ is an opportunity somebody wishes they had missed." -- Jane |
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Ben Finney
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