multi_polynomial_ideal.py:2557: DeprecationWarning: non-integer arguments to randrange() have been deprecated since Python 3.10

[maxale]

The following code results in

multi_polynomial_ideal.py:2557: DeprecationWarning: non-integer arguments to randrange() have been deprecated since Python 3.10 and will be removed in a subsequent version

R.<x,y,z> = PolynomialRing(AA)
J = R.ideal([ x+y^2+z^3-8, 2*x^2+y^3+z^4-8, 4*x^3+y^4+z^5-8] )
J.variety()

Component: algebra

Issue created by migration from https://trac.sagemath.org/ticket/34202

[DaveWitteMorris]

comment:1

What version of sage are you using? (And what is your operating system?) The problem may have been fixed by #33234, which I think was merged in version 9.7.beta1.

[maxale]

comment:2

I see it in Sage 9.6 and at https://sagecell.sagemath.org

The fix in #33234 seems to apply only to real_roots.pyx but not to multi_polynomial_ideal.py

[DaveWitteMorris]

comment:3

Thanks for the additional information. I was able reproduce the error in 9.6, and also verify that it does not occur in 9.7.beta5. The full deprecation message makes it pretty clear that the one-variable function f.univariate_polynomial().roots is being called:

<snip>/site-packages/sage/rings/polynomial/multi_polynomial_ideal.py:2557:
DeprecationWarning: non-integer arguments to randrange() have been deprecated 
since Python 3.10 and will be removed in a subsequent version
  roots = f.univariate_polynomial().roots(ring=ring, multiplicities=False)

So this is a duplicate of #33234.