Trac #33794: modules/fp_graded/morphism.py test failure

Happened when doctesting with `--long --all` and 64 threads, both on
x86_64 and on aarch64. Possibly related to #30680.

{{{
sage -t --long --random-seed=339659929997122211039564167058187187237
/nix/store/bfvc3kipmpmapbikj4zjlgdnglv5hrx2-sage-
src-9.6.rc3/src/sage/modules/fp_graded/morphism.py
**********************************************************************
File "/nix/store/bfvc3kipmpmapbikj4zjlgdnglv5hrx2-sage-
src-9.6.rc3/src/sage/modules/fp_graded/morphism.py", line 1571, in
sage.modules.fp_graded.morphism.FPModuleMorphism.image
Failed example:
    K.is_injective()  # long time
Exception raised:
    Traceback (most recent call last):
      File "/nix/store/s6xgkv83xziazw85fvay1zqigfd972jb-
python3-3.9.12-env/lib/python3.9/site-packages/sage/doctest/forker.py",
line 695, in _run
        self.compile_and_execute(example, compiler, test.globs)
      File "/nix/store/s6xgkv83xziazw85fvay1zqigfd972jb-
python3-3.9.12-env/lib/python3.9/site-packages/sage/doctest/forker.py",
line 1101, in compile_and_execute
        exec(compiled, globs)
      File "<doctest
sage.modules.fp_graded.morphism.FPModuleMorphism.image[11]>", line 1, in
<module>
        K.is_injective()  # long time
      File "/nix/store/s6xgkv83xziazw85fvay1zqigfd972jb-
python3-3.9.12-env/lib/python3.9/site-
packages/sage/modules/fp_graded/steenrod/morphism.py", line 122, in
is_injective
        finite_algebra = SteenrodAlgebra_generic(algebra.prime(),
profile=self.profile())
      File "/nix/store/s6xgkv83xziazw85fvay1zqigfd972jb-
python3-3.9.12-env/lib/python3.9/site-
packages/sage/modules/fp_graded/steenrod/morphism.py", line 90, in
profile
        return enveloping_profile_elements(elements,
      File "/nix/store/s6xgkv83xziazw85fvay1zqigfd972jb-
python3-3.9.12-env/lib/python3.9/site-
packages/sage/modules/fp_graded/steenrod/profile.py", line 132, in
enveloping_profile_elements
        profiles = [profile_elt(x) for x in alist if x != 0]
      File "/nix/store/s6xgkv83xziazw85fvay1zqigfd972jb-
python3-3.9.12-env/lib/python3.9/site-
packages/sage/modules/fp_graded/steenrod/profile.py", line 132, in
<listcomp>
        profiles = [profile_elt(x) for x in alist if x != 0]
      File "/nix/store/s6xgkv83xziazw85fvay1zqigfd972jb-
python3-3.9.12-env/lib/python3.9/site-
packages/sage/modules/fp_graded/steenrod/profile.py", line 82, in
profile_elt
        minprofile = [max(0, n.exact_log(char) + 1) for n in elt]
      File "/nix/store/s6xgkv83xziazw85fvay1zqigfd972jb-
python3-3.9.12-env/lib/python3.9/site-
packages/sage/modules/fp_graded/steenrod/profile.py", line 82, in
<listcomp>
        minprofile = [max(0, n.exact_log(char) + 1) for n in elt]
    AttributeError: 'int' object has no attribute 'exact_log'
}}}

URL: https://trac.sagemath.org/33794
Reported by: gh-collares
Ticket author(s): John Palmieri
Reviewer(s): Travis Scrimshaw

src/sage/modules/fp_graded/steenrod/profile.py

@@ -79,7 +79,7 @@ def profile_elt(elt, char=2):
         pass
 
     if char == 2:
-        minprofile = [max(0, n.exact_log(char) + 1) for n in elt]
+        minprofile = [max(0, ZZ(n).exact_log(char) + 1) for n in elt]
         return find_min_profile(minprofile, char)
 
     # odd primes: