maybe fixed

TomAugspurger · TomAugspurger · commit 509a5c1cb959 · 2024-10-10T14:53:50.000-05:00
diff --git a/src/zarr/codecs/_v2.py b/src/zarr/codecs/_v2.py
@@ -36,7 +36,7 @@ async def _decode_single(
             chunk_numpy_array = ensure_ndarray(chunk_bytes.as_array_like())
 
         # ensure correct dtype
-        if str(chunk_numpy_array.dtype) != chunk_spec.dtype:
+        if str(chunk_numpy_array.dtype) != chunk_spec.dtype and not chunk_spec.dtype.hasobject:
             chunk_numpy_array = chunk_numpy_array.view(chunk_spec.dtype)
 
         return get_ndbuffer_class().from_numpy_array(chunk_numpy_array)
diff --git a/tests/v3/test_v2.py b/tests/v3/test_v2.py
@@ -116,7 +116,10 @@ async def test_v2_encode_decode(dtype):
 
 @pytest.mark.parametrize("dtype", [str, "str"])
 async def test_create_dtype_str(dtype: Any) -> None:
-    arr = zarr.create(shape=10, dtype=dtype, zarr_format=2)
+    arr = zarr.create(shape=3, dtype=dtype, zarr_format=2)
     assert arr.dtype.kind == "O"
     assert arr.metadata.to_dict()["dtype"] == "|O"
     assert arr.metadata.filters == (numcodecs.vlen.VLenUTF8(),)
+    arr[:] = ["a", "bb", "ccc"]
+    result = arr[:]
+    np.testing.assert_array_equal(result, np.array(["a", "bb", "ccc"], dtype="object"))
