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Backport PR #4124 on branch 1.12.x (chore: change to zarr v3 writes) #4125

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Merged
ilan-gold merged 1 commit into from
May 15, 2026
+10 −1
Merged

Backport PR #4124 on branch 1.12.x (chore: change to zarr v3 writes) #4125

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11 changes: 10 additions & 1 deletion tests/conftest.py
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Original file line number Diff line number Diff line change
Expand Up @@ -7,10 +7,12 @@
from textwrap import dedent
from typing import TYPE_CHECKING, TypedDict, cast

import anndata as ad
import pytest
from packaging.version import Version

# just import for the IMPORTED check
import scanpy as _sc # noqa: F401
from scanpy._compat import pkg_version

if TYPE_CHECKING: # So editors understand that we’re using those fixtures
import os
Expand Down Expand Up @@ -155,3 +157,10 @@ def plt():
def exit_stack() -> Generator[ExitStack]:
with ExitStack() as stack:
yield stack


@pytest.fixture(autouse=True)
def anndata_settings():
if pkg_version("anndata") >= Version("0.12"):
ad.settings.auto_shard_zarr_v3 = True
ad.settings.zarr_write_format = 3
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