Merge pull request #1 from epassaro/hdf-fix

add fix for macos and py39

Author: wkerzendorf

.github/workflows/ci_workflows.yml

@@ -49,5 +49,8 @@ jobs:
         python-version: ${{ matrix.python-version }}
     - name: Install Tox
       run: python -m pip install tox
+    - name: Install HDF5 (macOS)
+      run: brew install hdf5 c-blosc
+      if: matrix.os == 'macos-latest'
     - name: Run Tox
       run: tox -v -e ${{ matrix.toxenv }}