Failed example:: Exception raised: Traceback (most recent call last): File "/sage/src/sage/doctest/forker.py", line 728, in _run self.compile_and_execute(example, compiler, test.globs) File "/sage/src/sage/doctest/forker.py", line 1152, in compile_and_execute exec(compiled, globs) File "<doctest sage.schemes.elliptic_curves.hom_sum[8]>", line 1, in <module> i * j == - j * i # i,j anticommute File "sage/structure/element.pyx", line 1097, in sage.structure.element.Element.__richcmp__ return (<Element>self)._richcmp_(other, op) File "sage/categories/morphism.pyx", line 352, in sage.categories.morphism.Morphism._richcmp_ cpdef _richcmp_(self, other, int op): File "/sage/src/sage/schemes/elliptic_curves/hom.py", line 280, in _richcmp_ ret = self._comparison_impl(self, other, op) File "/sage/src/sage/schemes/elliptic_curves/hom_composite.py", line 728, in _comparison_impl return compare_via_evaluation(left, right) File "/sage/src/sage/schemes/elliptic_curves/hom.py", line 1184, in compare_via_evaluation P = E.random_point() File "/sage/src/sage/schemes/elliptic_curves/ell_finite_field.py", line 392, in random_element v = self.lift_x(k.random_element(), all=True) File "/sage/src/sage/schemes/elliptic_curves/ell_generic.py", line 959, in lift_x ys = [(-b+d)/2 for d in D.sqrt(all=True)] File "sage/rings/finite_rings/element_pari_ffelt.pyx", line 1080, in sage.rings.finite_rings.element_pari_ffelt.FiniteFieldElement_pari_ffelt.sqrt sig_on() SystemError: calling remove_from_pari_stack() inside sig_on()

Process completed with exit code 1.

The process '/usr/bin/git' failed with exit code 128

fatal: no submodule mapping found in .gitmodules for path 'subprojects/factory'

The process '/usr/bin/git' failed with exit code 128

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The process '/usr/bin/git' failed with exit code 128

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The process '/usr/bin/git' failed with exit code 128