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(fix): raise error on non-integer floating types in iterables #1746

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(fix): raise error on non-integer floating types in iterables #1746

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dd853e7
(fix): raise error on non-integer floating types
ilan-gold Nov 8, 2024
98f7bea
(chore): release note
ilan-gold Nov 8, 2024
150d8aa
(fix): test for float32 and float64
ilan-gold Nov 11, 2024
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1 change: 1 addition & 0 deletions docs/release-notes/1746.bugfix.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Error out on floating point indices that are not actually integers {user}`ilan-gold`
4 changes: 4 additions & 0 deletions src/anndata/_core/index.py
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Expand Up @@ -82,6 +82,10 @@ def name_idx(i):
indexer = np.array(indexer)
if len(indexer) == 0:
indexer = indexer.astype(int)
if isinstance(indexer, np.ndarray) and indexer.dtype == float:
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Please fix the comparison so it doesn’t only work with float64:

>>> np.dtype(np.float64) == float
True
>>> np.dtype(np.float32) == float
False

(and parametrize the tests please)

indexer_int = indexer.astype(int)
if np.all((indexer - indexer_int) != 0):
raise IndexError(f"Indexer {indexer!r} has floating point values.")
if issubclass(indexer.dtype.type, np.integer | np.floating):
return indexer # Might not work for range indexes
elif issubclass(indexer.dtype.type, np.bool_):
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13 changes: 13 additions & 0 deletions tests/test_views.py
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Expand Up @@ -814,6 +814,19 @@ def test_index_3d_errors(index: tuple[int | EllipsisType, ...], expected_error:
gen_adata((10, 10))[index]


@pytest.mark.parametrize(
"index",
[
pytest.param(sparse.csr_matrix(np.random.random((1, 10))), id="sparse"),
pytest.param(np.array([1.2, 2.3]), id="ndarray"),
pytest.param([1.2, 3.4], id="list"),
],
)
def test_index_float_sequence_raises_error(index):
with pytest.raises(IndexError, match=r"has floating point values"):
gen_adata((10, 10))[index]


# @pytest.mark.parametrize("dim", ["obs", "var"])
# @pytest.mark.parametrize(
# ("idx", "pat"),
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