[Python-Dev] Mixing float and Decimal -- thread reboot (original) (raw)
Mark Dickinson dickinsm at gmail.com
Mon Mar 22 21:49:06 CET 2010
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On Mon, Mar 22, 2010 at 8:44 PM, Guido van Rossum <guido at python.org> wrote:
On Mon, Mar 22, 2010 at 12:33 PM, Raymond Hettinger <raymond.hettinger at gmail.com> wrote:
While we're on the topic, I think you should consider allowing the Fraction() constructor to accept a decimal input.
This corresponds to common schoolbook problems and simple client requests: "Express 3.5 as a fraction". >>> Fraction(Decimal('3.5')) Fraction(7, 2) There is already a Fraction.fromdecimal() class method.
So there is; I'd failed to notice that! So decimal -> fraction conversion is implemented twice in the Fractions module---once in new and once in from_decimal. Hmm.
Mark
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