"Cassiano, Marco" wrote:
> I have difficulties with a weird Python 2.4.2 behaviour in comparing
> Decimal to Floats.
>
> For Example :
>
>
> >>> from decimal import Decimal
> >>> a=Decimal('3.7')
> >>> b=6.3
>
> >>> if a > b :print a,b,'a is greater than b - NOT TRUE!!!!'
> ... else: print a,b,'b is greater than a - CORRECT'
> ...
>
>
> 3.7 6.3 a is greater than b - NOT TRUE!!!!
is this
>>> 1.0 > "0"
False
also a bug ?
http://www.python.org/doc/ref/comparisons.html
"Most other types compare unequal unless they are the
same object; the choice whether one object is considered
smaller or larger than another one is made arbitrarily but
consistently within one execution of a program."
you can find more information on the design of the decimal type
here:
http://www.python.org/peps/pep-0327.html
and various issues with floating point are described here:
http://docs.python.org/tut/node16.html
</F>
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