FYI the following fails on 10.6 and https://sagecell.sagemath.org/
print(giac.version()) K.<X,Y>=QQ[];I=Ideal([X+Y,X*Y]) I2=I.elimination_ideal(X,algorithm="giac");I2 #fails with exception "giac 1.9.0, (c) ModuleNotFoundError: No module named 'sagemath_giac' -- 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 view this discussion visit https://groups.google.com/d/msgid/sage-devel/CAGUWgD-6vDT%2B_zC3wDuTU2%3DqrfoTMY%2BoAkaVNUy93oemMbQT1g%40mail.gmail.com.
