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.algebras.quatalg.quaternion_algebra.QuaternionAlgebraFactory[20]>", line 1, in <module> QuaternionAlgebra(QQ, [(Integer(2)), (Integer(3))], [Integer(0)]) File "sage/structure/factory.pyx", line 371, in sage.structure.factory.UniqueFactory.__call__ key, kwds = self.create_key_and_extra_args(*args, **kwds) File "sage/structure/factory.pyx", line 475, in sage.structure.factory.UniqueFactory.create_key_and_extra_args return self.create_key(*args, **kwds), {} File "/sage/src/sage/algebras/quatalg/quaternion_algebra.py", line 386, in create_key D = prod(primes).gen() ^^^^ NameError: name 'prod' is not defined

Process completed with exit code 1.

Process completed with exit code 1.

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

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