Backport PR #1745: (chore): unbound dask (#1751)

Co-authored-by: Ilan Gold <ilanbassgold@gmail.com>

docs/release-notes/1725.bugfix.md

@@ -0,0 +1,2 @@
+
+Remove upper pin on `dask` and exclude versions broken with sparse indexing {user}`ilan-gold`

pyproject.toml

@@ -107,7 +107,7 @@ gpu = ["cupy"]
 cu12 = ["cupy-cuda12x"]
 cu11 = ["cupy-cuda11x"]
 # https://github.com/dask/dask/issues/11290
-dask = ["dask[array]>=2022.09.2,<2024.8.0"]
+dask = ["dask[array]>=2022.09.2,!=2024.8.*,!=2024.9.*"]
 
 [tool.hatch.version]
 source = "vcs"

tests/conftest.py

@@ -3,9 +3,16 @@
 from functools import partial
 from typing import TYPE_CHECKING
 
+import dask
 import joblib
 import pytest
-from dask.base import normalize_seq, normalize_token, tokenize
+from dask.base import normalize_token, tokenize
+from packaging.version import Version
+
+if Version(dask.__version__) < Version("2024.8.0"):
+    from dask.base import normalize_seq
+else:
+    from dask.tokenize import normalize_seq
 from scipy import sparse
 
 import anndata as ad