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-rw-r--r--numpy/linalg/tests/test_regression.py6
1 files changed, 6 insertions, 0 deletions
diff --git a/numpy/linalg/tests/test_regression.py b/numpy/linalg/tests/test_regression.py
index 54a67bce3..2c890232f 100644
--- a/numpy/linalg/tests/test_regression.py
+++ b/numpy/linalg/tests/test_regression.py
@@ -90,6 +90,12 @@ class TestRegression(TestCase):
assert_equal(np.linalg.matrix_rank(a), 1)
assert_array_less(1, np.linalg.norm(a, ord=2))
+ def test_norm_object_array(self):
+ # gh-7575
+ norm = linalg.norm(np.array([np.array([0, 1]), 0, 0], dtype=object))
+ assert_array_equal(norm, [0, 1])
+ self.assertEqual(norm.dtype, np.dtype('float64'))
+
if __name__ == '__main__':
run_module_suite()