diff --git a/src/zarr/abc/codec.py b/src/zarr/abc/codec.py
index 2098d989e9..5d68df5673 100644
--- a/src/zarr/abc/codec.py
+++ b/src/zarr/abc/codec.py
@@ -276,15 +276,17 @@ def from_codecs(cls, codecs: Iterable[Codec]) -> Self:
         -------
         Self
         """
-        ...
+        raise NotImplementedError
 
     @property
     @abstractmethod
-    def supports_partial_decode(self) -> bool: ...
+    def supports_partial_decode(self) -> bool:
+        raise NotImplementedError
 
     @property
     @abstractmethod
-    def supports_partial_encode(self) -> bool: ...
+    def supports_partial_encode(self) -> bool:
+        raise NotImplementedError
 
     @abstractmethod
     def validate(self, *, shape: ChunkCoords, dtype: np.dtype[Any], chunk_grid: ChunkGrid) -> None:
@@ -300,7 +302,7 @@ def validate(self, *, shape: ChunkCoords, dtype: np.dtype[Any], chunk_grid: Chun
         chunk_grid: ChunkGrid
             The array chunk grid
         """
-        ...
+        raise NotImplementedError
 
     @abstractmethod
     def compute_encoded_size(self, byte_length: int, array_spec: ArraySpec) -> int:
@@ -316,7 +318,7 @@ def compute_encoded_size(self, byte_length: int, array_spec: ArraySpec) -> int:
         -------
         int
         """
-        ...
+        raise NotImplementedError
 
     @abstractmethod
     async def decode(
@@ -335,7 +337,7 @@ async def decode(
         -------
         Iterable[NDBuffer | None]
         """
-        ...
+        raise NotImplementedError
 
     @abstractmethod
     async def encode(
@@ -354,7 +356,7 @@ async def encode(
         -------
         Iterable[Buffer | None]
         """
-        ...
+        raise NotImplementedError
 
     @abstractmethod
     async def read(
@@ -376,7 +378,7 @@ async def read(
             The chunk spec contains information about the construction of an array from the bytes.
         out : NDBuffer
         """
-        ...
+        raise NotImplementedError
 
     @abstractmethod
     async def write(
@@ -399,7 +401,7 @@ async def write(
             The chunk spec contains information about the chunk.
         value : NDBuffer
         """
-        ...
+        raise NotImplementedError
 
 
 async def _batching_helper(
diff --git a/src/zarr/core/buffer/core.py b/src/zarr/core/buffer/core.py
index 95c4e00e99..08a337dd74 100644
--- a/src/zarr/core/buffer/core.py
+++ b/src/zarr/core/buffer/core.py
@@ -419,7 +419,7 @@ def as_numpy_array(self) -> npt.NDArray[Any]:
         -------
             NumPy array of this buffer (might be a data copy)
         """
-        ...
+        raise NotImplementedError
 
     @property
     def dtype(self) -> np.dtype[Any]:
@@ -451,10 +451,12 @@ def astype(self, dtype: npt.DTypeLike, order: Literal["K", "A", "C", "F"] = "K")
         return self.__class__(self._data.astype(dtype=dtype, order=order))
 
     @abstractmethod
-    def __getitem__(self, key: Any) -> Self: ...
+    def __getitem__(self, key: Any) -> Self:
+        raise NotImplementedError
 
     @abstractmethod
-    def __setitem__(self, key: Any, value: Any) -> None: ...
+    def __setitem__(self, key: Any, value: Any) -> None:
+        raise NotImplementedError
 
     def __len__(self) -> int:
         return self._data.__len__()
diff --git a/src/zarr/core/chunk_grids.py b/src/zarr/core/chunk_grids.py
index 61723215c6..4f9d00d66d 100644
--- a/src/zarr/core/chunk_grids.py
+++ b/src/zarr/core/chunk_grids.py
@@ -112,11 +112,11 @@ def from_dict(cls, data: dict[str, JSON] | ChunkGrid) -> ChunkGrid:
 
     @abstractmethod
     def all_chunk_coords(self, array_shape: ChunkCoords) -> Iterator[ChunkCoords]:
-        pass
+        raise NotImplementedError
 
     @abstractmethod
     def get_nchunks(self, array_shape: ChunkCoords) -> int:
-        pass
+        raise NotImplementedError
 
 
 @dataclass(frozen=True)
diff --git a/src/zarr/core/chunk_key_encodings.py b/src/zarr/core/chunk_key_encodings.py
index ed12ee3065..e23ab52652 100644
--- a/src/zarr/core/chunk_key_encodings.py
+++ b/src/zarr/core/chunk_key_encodings.py
@@ -55,11 +55,11 @@ def to_dict(self) -> dict[str, JSON]:
 
     @abstractmethod
     def decode_chunk_key(self, chunk_key: str) -> ChunkCoords:
-        pass
+        raise NotImplementedError
 
     @abstractmethod
     def encode_chunk_key(self, chunk_coords: ChunkCoords) -> str:
-        pass
+        raise NotImplementedError
 
 
 @dataclass(frozen=True)