> What would be the best place to do a bug report ? Github ?
Yes, we have our bug tracker on github. File an issue [here](
https://github.com/sympy/sympy/issues).
On 9 March 2016 at 23:46, Vincent Noel <vincent.n...@butantan.gov.br> wrote:
> Many thanks Aaron !
>
> What would be the best place to do a bug report ? Github ?
>
> Vincent
>
> On Tuesday, March 8, 2016 at 6:48:46 PM UTC-3, Aaron Meurer wrote:
>>
>> I think the evaluation of booleans happens in the superclass
>> (LatticeOp), which ignores the evaluate flag. It should probably be
>> considered a bug. A simple workaround would be to use Symbol("true")
>> and Symbol("false") instead of S.true and S.false (and replace them
>> with their true boolean counterparts when you wish to evaluate them).
>>
>> Aaron Meurer
>>
>> On Tue, Mar 8, 2016 at 3:49 PM, Vincent Noel
>> <vincen...@butantan.gov.br> wrote:
>> > Hi !
>> >
>> > I'm working on a project where I need to save expressions unevaluated.
>> So
>> > far so good, but I'm having a problem with boolean operators.
>> > Here is an example of expression (coming from test units, thus the
>> apparent
>> > weirdness) :
>> >
>> > True && False
>> >
>> > which I'm writing in Sympy as :
>> >
>> > sympy.And(sympy.true, sympy.false, evaluate=False)
>> >
>> > Problem is that, contrary to other sympy operators/functions, the
>> > evaluate=False seems to have no effect. This always evaluate the
>> expression
>> > Is there any other way to prevent that ? Am I doing something wrong ?
>> >
>> > Many thanks for what is already an awesome library :)
>> >
>> > Vincent
>> >
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--
Regards
*Sartaj Singh*
*Mathematics and Computing*,
Indian Institute of Technology,
Varanasi - 221 005 INDIA
E-mail: singhsarta...@gmail.com, *sartaj.singh.ap...@itbhu.ac.in
<sartaj.singh.ap...@itbhu.ac.in>*
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