On Mon, Jul 30, 2018 at 8:34 PM Jeroen Demeyer <j.deme...@ugent.be> wrote: > > On 2018-07-30 18:31, Erik Bray wrote: > > This is a bit far-out, but what if we just didn't show tracebacks at > > all by default? > > Sorry to say, but that would be a horrible idea. Even if the tracebacks > are completely useless for ordinary users, they allow developers to > debug an issue when posted on a mailing list/asksage. I would avoid > anything that makes it harder for users to get help from developers.
I agree but if you read the rest of my message you would see that I also suggested making it very easy to obtain the actual traceback (even including instruction for doing so with every error). That's no harder--easier even--than what we already ask of users when give them a path to the error log when Sage crashes on startup. To be concrete, instead of seeing: sage: 1 / 0 --------------------------------------------------------------------------- ZeroDivisionError Traceback (most recent call last) <ipython-input-10-b43c99900d8f> in <module>() ----> 1 Integer(1) / Integer(0) /home/embray/src/sagemath/sage-python3/local/lib/python3.6/site-packages/sage/structure/element.pyx in sage.structure.element.Element.__truediv__ (build/cythonized/sage/structure/element.c:13020)() 1729 cdef int cl = classify_elements(left, right) 1730 if HAVE_SAME_PARENT(cl): -> 1731 return (<Element>left)._div_(right) 1732 if BOTH_ARE_ELEMENT(cl): 1733 return coercion_model.bin_op(left, right, truediv) /home/embray/src/sagemath/sage-python3/local/lib/python3.6/site-packages/sage/rings/integer.pyx in sage.rings.integer.Integer._div_ (build/cythonized/sage/rings/integer.c:13584)() 1952 """ 1953 if mpz_sgn((<Integer>right).value) == 0: -> 1954 raise ZeroDivisionError("rational division by zero") 1955 x = <Rational> Rational.__new__(Rational) 1956 mpq_div_zz(x.value, self.value, (<Integer>right).value) ZeroDivisionError: rational division by zero users would see: sage: 1 / 0 ZeroDivisionError: rational division by zero (enter %tb to see the full error traceback) As William noted this is already roughly the behavior on SageNB, so I would wager that it's not a "horrible idea". -- 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 https://groups.google.com/group/sage-devel. For more options, visit https://groups.google.com/d/optout.