But in that very particular case, just evaluating the string
representation in GAP gives you back the same group
sage: s = "Group([ [ [ 1, 1 ], [ 0, 1 ] ], [ [ 1, 0 ], [ 1, 1 ] ] ])"
sage: G = libgap.eval(s)
sage: str(G) == s
True
sage: G == libgap.eval(s)
True
Is it better/safer to always raise an error?
Vincent
On 15/03/2015, Volker Braun <vbraun.n...@gmail.com> wrote:
> We should show a better error message
>
> But afaik GAP doesn't have a pickling feature apart from saving the entire
> workspace, so there is little we can do about it.
>
>
>
> On Sunday, March 15, 2015 at 12:16:28 PM UTC+1, vdelecroix wrote:
>>
>> Hello,
>>
>> I am trying to implement a native SL(n,Z) in Sage using our dense
>> matrices. But while factoring some code in sage.groups.matrix_gps I
>> ran into
>>
>> sage: G = libgap.eval("Group([ [ [ 1, 1 ], [ 0, 1 ] ], [ [ 1, 0 ], [
>> 1, 1 ] ] ])")
>> sage: loads(dumps(G))
>> Traceback (most recent call last)
>> ...
>> AttributeError: Python special name, not a GAP function.
>>
>> Is that the expected behavior?
>>
>> Thanks
>> Vincent
>>
>
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