On Mon, May 18, 2009 at 5:48 PM, Mike Witt <[email protected]> wrote:
>
> Is there a way to evaluate a string in the "same way" as sage would
> evaluate it? Or, to put it another way, maybe I'm just confused about
> the way 'eval' works (or maybe eval isn't the right function) ...
> ...
> sage: frac=eval('1/2')
> sage: frac
> 0
> sage: type(frac)
> <type 'int'>
You can use sage_eval:
sage: sage_eval('1/2')
1/2
sage: type(_)
<type 'sage.rings.rational.Rational'>
This is basically equivalent for the following:
sage: eval(preparse('1/2'))
1/2
--Mike
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