release docs and repr test

Author: normanrz

docs/release.rst

@@ -27,6 +27,8 @@ Fixes
 ~~~~~
 * Fixes issue with ``Delta`` Zarr 3 codec not working with ``astype``.
   By :user:`Norman Rzepka <normanrz>`, :issue:`664`
+* Fixes issues with the upcoming ``zarr`` 3.0.0 release.
+  By :user:`Norman Rzepka <normanrz>`, :issue:`675`
 
 
 Improvements

numcodecs/tests/test_zarr3.py

@@ -267,3 +267,8 @@ def test_delta_astype(store: StorePath):
         a[:, :] = data.copy()
         a = zarr.open_array(store / "generic", mode="r")
     np.testing.assert_array_equal(data, a[:, :])
+
+
+def test_repr():
+    codec = numcodecs.zarr3.LZ4(level=5)
+    assert repr(codec) == "LZ4(codec_name='numcodecs.lz4', codec_config={'level': 5})"

numcodecs/zarr3.py

@@ -122,7 +122,9 @@ def compute_encoded_size(self, input_byte_length: int, chunk_spec: ArraySpec) ->
 
     # Override __repr__ because dynamically constructed classes don't seem to work otherwise
     def __repr__(self) -> str:
-        return f"{self.__class__.__name__}(codec_name={self.codec_name!r}, codec_config={self.codec_config!r})"
+        codec_config = self.codec_config.copy()
+        codec_config.pop("id", None)
+        return f"{self.__class__.__name__}(codec_name={self.codec_name!r}, codec_config={codec_config!r})"
 
 
 class _NumcodecsBytesBytesCodec(_NumcodecsCodec, BytesBytesCodec):