astype with copy=False

Author: normanrz

src/zarr/codecs/_v2.py

@@ -69,7 +69,7 @@ async def _encode_single(
         chunk = chunk_array.as_ndarray_like()
 
         # ensure contiguous and correct order
-        chunk = chunk.astype(chunk_spec.dtype, order=chunk_spec.order)
+        chunk = chunk.astype(chunk_spec.dtype, order=chunk_spec.order, copy=False)
 
         # apply filters
         if self.filters:

src/zarr/core/buffer/core.py

@@ -80,7 +80,13 @@ def reshape(
 
     def view(self, dtype: npt.DTypeLike) -> Self: ...
 
-    def astype(self, dtype: npt.DTypeLike, order: Literal["K", "A", "C", "F"] = ...) -> Self: ...
+    def astype(
+        self,
+        dtype: npt.DTypeLike,
+        order: Literal["K", "A", "C", "F"] = ...,
+        *,
+        copy: bool = ...,
+    ) -> Self: ...
 
     def fill(self, value: Any) -> None: ...