Failed example:: Exception raised: Traceback (most recent call last): File "sage/structure/category_object.pyx", line 857, in sage.structure.category_object.CategoryObject.getattr_from_category return self._cached_methods[name] KeyError: '_ideal' During handling of the above exception, another exception occurred: 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.matroids.chow_ring.ChowRing[1]>", line 1, in <module> ch = M1.chow_ring(QQ, False) File "sage/matroids/matroid.pyx", line 8110, in sage.matroids.matroid.Matroid.chow_ring return ChowRing(M=self, R=R, augmented=augmented, presentation=presentation) File "/sage/src/sage/matroids/chow_ring.py", line 120, in __init__ QuotientRing_generic.__init__(self, R=self._ideal.ring(), File "sage/structure/category_object.pyx", line 851, in sage.structure.category_object.CategoryObject.__getattr__ return self.getattr_from_category(name) File "sage/structure/category_object.pyx", line 866, in sage.structure.category_object.CategoryObject.getattr_from_category attr = getattr_from_other_class(self, cls, name) File "sage/cpython/getattr.pyx", line 363, in sage.cpython.getattr.getattr_from_other_class raise AttributeError(dummy_error_message) AttributeError: 'ChowRing' object has no attribute '_ideal'. Did you mean: 'ideal'?

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.matroids.chow_ring.ChowRing[2]>", line 1, in <module> ch NameError: name 'ch' is not defined

Failed example:: Exception raised: Traceback (most recent call last): File "sage/structure/category_object.pyx", line 857, in sage.structure.category_object.CategoryObject.getattr_from_category return self._cached_methods[name] KeyError: '_ideal' During handling of the above exception, another exception occurred: 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.matroids.chow_ring.ChowRing.__init__[0]>", line 1, in <module> ch = matroids.Wheel(Integer(3)).chow_ring(QQ, False) File "sage/matroids/matroid.pyx", line 8110, in sage.matroids.matroid.Matroid.chow_ring return ChowRing(M=self, R=R, augmented=augmented, presentation=presentation) File "/sage/src/sage/matroids/chow_ring.py", line 120, in __init__ QuotientRing_generic.__init__(self, R=self._ideal.ring(), File "sage/structure/category_object.pyx", line 851, in sage.structure.category_object.CategoryObject.__getattr__ return self.getattr_from_category(name) File "sage/structure/category_object.pyx", line 866, in sage.structure.category_object.CategoryObject.getattr_from_category attr = getattr_from_other_class(self, cls, name) File "sage/cpython/getattr.pyx", line 363, in sage.cpython.getattr.getattr_from_other_class raise AttributeError(dummy_error_message) AttributeError: 'ChowRing' object has no attribute '_ideal'. Did you mean: 'ideal'?

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.matroids.chow_ring.ChowRing.__init__[1]>", line 1, in <module> TestSuite(ch).run() NameError: name 'ch' is not defined

Failed example:: Exception raised: Traceback (most recent call last): File "sage/structure/category_object.pyx", line 857, in sage.structure.category_object.CategoryObject.getattr_from_category return self._cached_methods[name] KeyError: '_ideal' During handling of the above exception, another exception occurred: 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.matroids.chow_ring.ChowRing._repr_[1]>", line 1, in <module> ch = M1.chow_ring(QQ, False) File "sage/matroids/matroid.pyx", line 8110, in sage.matroids.matroid.Matroid.chow_ring return ChowRing(M=self, R=R, augmented=augmented, presentation=presentation) File "/sage/src/sage/matroids/chow_ring.py", line 120, in __init__ QuotientRing_generic.__init__(self, R=self._ideal.ring(), File "sage/structure/category_object.pyx", line 851, in sage.structure.category_object.CategoryObject.__getattr__ return self.getattr_from_category(name) File "sage/structure/category_object.pyx", line 866, in sage.structure.category_object.CategoryObject.getattr_from_category attr = getattr_from_other_class(self, cls, name) File "sage/cpython/getattr.pyx", line 363, in sage.cpython.getattr.getattr_from_other_class raise AttributeError(dummy_error_message) AttributeError: 'ChowRing' object has no attribute '_ideal'. Did you mean: 'ideal'?

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.matroids.chow_ring.ChowRing._repr_[2]>", line 1, in <module> ch NameError: name 'ch' is not defined

Failed example:: Exception raised: Traceback (most recent call last): File "sage/structure/category_object.pyx", line 857, in sage.structure.category_object.CategoryObject.getattr_from_category return self._cached_methods[name] KeyError: '_ideal' During handling of the above exception, another exception occurred: 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.matroids.chow_ring.ChowRing._latex_[1]>", line 1, in <module> ch = M1.chow_ring(QQ, False) File "sage/matroids/matroid.pyx", line 8110, in sage.matroids.matroid.Matroid.chow_ring return ChowRing(M=self, R=R, augmented=augmented, presentation=presentation) File "/sage/src/sage/matroids/chow_ring.py", line 120, in __init__ QuotientRing_generic.__init__(self, R=self._ideal.ring(), File "sage/structure/category_object.pyx", line 851, in sage.structure.category_object.CategoryObject.__getattr__ return self.getattr_from_category(name) File "sage/structure/category_object.pyx", line 866, in sage.structure.category_object.CategoryObject.getattr_from_category attr = getattr_from_other_class(self, cls, name) File "sage/cpython/getattr.pyx", line 363, in sage.cpython.getattr.getattr_from_other_class raise AttributeError(dummy_error_message) AttributeError: 'ChowRing' object has no attribute '_ideal'. Did you mean: 'ideal'?

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.matroids.chow_ring.ChowRing._latex_[2]>", line 1, in <module> ch._latex_() NameError: name 'ch' is not defined

Failed example:: Exception raised: Traceback (most recent call last): File "sage/structure/category_object.pyx", line 857, in sage.structure.category_object.CategoryObject.getattr_from_category return self._cached_methods[name] KeyError: '_ideal' During handling of the above exception, another exception occurred: 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.matroids.chow_ring.ChowRing._coerce_map_from_base_ring[0]>", line 1, in <module> ch = matroids.Wheel(Integer(3)).chow_ring(QQ, False) File "sage/matroids/matroid.pyx", line 8110, in sage.matroids.matroid.Matroid.chow_ring return ChowRing(M=self, R=R, augmented=augmented, presentation=presentation) File "/sage/src/sage/matroids/chow_ring.py", line 120, in __init__ QuotientRing_generic.__init__(self, R=self._ideal.ring(), File "sage/structure/category_object.pyx", line 851, in sage.structure.category_object.CategoryObject.__getattr__ return self.getattr_from_category(name) File "sage/structure/category_object.pyx", line 866, in sage.structure.category_object.CategoryObject.getattr_from_category attr = getattr_from_other_class(self, cls, name) File "sage/cpython/getattr.pyx", line 363, in sage.cpython.getattr.getattr_from_other_class raise AttributeError(dummy_error_message) AttributeError: 'ChowRing' object has no attribute '_ideal'. Did you mean: 'ideal'?

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.matroids.chow_ring.ChowRing._coerce_map_from_base_ring[1]>", line 1, in <module> ch._coerce_map_from_base_ring() is None NameError: name 'ch' is not defined

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'