fixes for ci

Author: normanrz

.github/workflows/ci.yaml

@@ -63,20 +63,19 @@ jobs:
           # TODO: put back zfpy import when it supports numpy 2.0
           python -m pip install -v -e .[test,test_extras,msgpack,pcodec]
 
-      # This is used to test with zfpy, which does not yet support numpy 2.0
-      - name: Install older numpy and zfpy
-        if: matrix.python-version == '3.10'
+      - name: Install zarr-python
         shell: "bash -l {0}"
         run: |
           conda activate env
-          python -m pip install "zfpy>=1" "numpy<2"
+          python -m pip install zarr==3.0.0a0
 
-      - name: Install zarr-python
+      # This is used to test with zfpy, which does not yet support numpy 2.0
+      - name: Install older numpy and zfpy
+        if: matrix.python-version == '3.10'
         shell: "bash -l {0}"
-        if: ${{ matrix.python-version != '3.8' && matrix.python-version != '3.9' }}
         run: |
           conda activate env
-          python -m pip install zarr==3.0.0a0
+          python -m pip install "zfpy>=1" "numpy<2"
 
       - name: List installed packages
         shell: "bash -l {0}"

numcodecs/tests/test_zarr3.py

@@ -180,6 +180,15 @@ def test_generic_checksum(store: Store, codec_id: str):
 def test_generic_bytes_codec(store: Store, codec_id: str):
     data = np.arange(0, 256, dtype="float32").reshape((16, 16))
 
+    try:
+        codec_class = get_codec_class(f"numcodecs.{codec_id}")
+    except ValueError as e:
+        # zfpy is not available on all platforms and versions
+        if "codec not available" in str(e):
+            return
+        else:
+            raise
+
     with pytest.warns(UserWarning, match="Numcodecs.*"):
         a = Array.create(
             store / "generic",
@@ -188,7 +197,7 @@ def test_generic_bytes_codec(store: Store, codec_id: str):
             dtype=data.dtype,
             fill_value=0,
             codecs=[
-                get_codec_class(f"numcodecs.{codec_id}")({"id": codec_id}),
+                codec_class({"id": codec_id}),
             ],
         )