On Mon, Mar 22, 2010 at 8:33 PM, Raymond Hettinger <raymond.hettin...@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) > > Unlike typical binary floats which use full precision, it is not uncommon > to have decimal floats with only a few digits of precision where the > expression as a fraction is both useful and unsurprising.
Sounds fine to me. Fraction already accepts decimal floating-point strings, so the implementation of this would be trivial (convert to string, then call the Fraction constructor). Mark _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com