Apply ruff preview rule RUF036

RUF036 `None` not at the end of the type annotation.

Author: DimitriPapadopoulos

src/zarr/core/array.py

@@ -2119,7 +2119,7 @@ def filters(self) -> tuple[Numcodec, ...] | tuple[ArrayArrayCodec, ...]:
         return self.async_array.filters
 
     @property
-    def serializer(self) -> None | ArrayBytesCodec:
+    def serializer(self) -> ArrayBytesCodec | None:
         """
         Array-to-bytes codec to use for serializing the chunks into bytes.
         """

src/zarr/core/chunk_grids.py

@@ -743,7 +743,7 @@ def _auto_partition(
     given the dtype and shard shape. Otherwise, the chunks will be returned as-is.
     """
     if shard_shape is None:
-        _shards_out: None | tuple[int, ...] = None
+        _shards_out: tuple[int, ...] | None = None
         if chunk_shape == "auto":
             _chunks_out = _guess_chunks(array_shape, item_size)
         else:

src/zarr/testing/strategies.py

@@ -124,7 +124,7 @@ def clear_store(x: Store) -> Store:
 
 
 @st.composite
-def dimension_names(draw: st.DrawFn, *, ndim: int | None = None) -> list[None | str] | None:
+def dimension_names(draw: st.DrawFn, *, ndim: int | None = None) -> list[str | None] | None:
     simple_text = st.text(zarr_key_chars, min_size=0)
     return draw(st.none() | st.lists(st.none() | simple_text, min_size=ndim, max_size=ndim))  # type: ignore[arg-type]