Hi Joao, On 2014-09-22, Joao Alberto de Faria <fariajoa...@gmail.com> wrote: > R.<t> = FunctionField(QQ) > S.<x, y> = PolynomialRing(R,2) > I = S.ideal([x^2 - y^2, y-t]) > I.groebner_basis() > > I receive the following error: > AttributeError: 'str' object has no attribute 'parent'
I can confirm it. > After testing the code again with the 'toy:buchberger2" GB algorithm, I > found that it was able to do it. Looking into the code it fails when > passing into singular and isn't currently handled by the current error > exceptions. To me, it seems that all that needs to be done is to add an > AttributeError to the except list in the multi_polynomial_ideal grobner > basis definiton. No. I rather think the _element_constructor_ method of function fields should be able to deal with input that is a string. I will open a trac ticket for it. Thank you for the report! Simon -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To post to this group, send email to sage-devel@googlegroups.com. Visit this group at http://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.
