diff options
Diffstat (limited to 'numpy/lib')
| -rw-r--r-- | numpy/lib/shape_base.py | 7 | ||||
| -rw-r--r-- | numpy/lib/tests/test_shape_base.py | 6 |
2 files changed, 12 insertions, 1 deletions
diff --git a/numpy/lib/shape_base.py b/numpy/lib/shape_base.py index 2d18c5bc8..4acdf4a77 100644 --- a/numpy/lib/shape_base.py +++ b/numpy/lib/shape_base.py @@ -850,7 +850,12 @@ def tile(A, reps): except TypeError: tup = (reps,) d = len(tup) - c = _nx.array(A, copy=False, subok=True, ndmin=d) + if all((x == 1 for x in tup)) and isinstance(A, _nx.ndarray): + # Fixes the problem that the function does not make a copy if A is a + # numpy array and the repetitions are 1 in all dimensions + c = _nx.array(A, copy=True, subok=True, ndmin=d) + else: + c = _nx.array(A, copy=False, subok=True, ndmin=d) shape = list(c.shape) n = max(c.size, 1) if (d < c.ndim): diff --git a/numpy/lib/tests/test_shape_base.py b/numpy/lib/tests/test_shape_base.py index 23f3edfbe..fb9d7f364 100644 --- a/numpy/lib/tests/test_shape_base.py +++ b/numpy/lib/tests/test_shape_base.py @@ -324,6 +324,12 @@ class TestTile(TestCase): assert_equal(tile(b, (2, 2)), [[1, 2, 1, 2], [3, 4, 3, 4], [1, 2, 1, 2], [3, 4, 3, 4]]) + def test_tile_one_repetition_on_array_gh4679(self): + a = np.arange(5) + b = tile(a, 1) + b += 2 + assert_equal(a, np.arange(5)) + def test_empty(self): a = np.array([[[]]]) d = tile(a, (3, 2, 5)).shape |