Fix bytes fill value

hdmf-dev · Jan 1, 2024 · 971dfce · 971dfce
1 parent e3ac387
commit 971dfce
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/hdmf_zarr/utils.py b/src/hdmf_zarr/utils.py
@@ -486,6 +486,8 @@ def from_h5py_dataset(h5dataset, **kwargs):
         """
         filters = ZarrDataIO.hdf5_to_zarr_filters(h5dataset)
         fillvalue = h5dataset.fillvalue if 'fillvalue' not in kwargs else kwargs.pop('fillvalue')
+        if isinstance(fillvalue, bytes): # bytes are not JSON serializable so use string instead
+            fillvalue = str(fillvalue)
         chunks = h5dataset.chunks if 'chunks' not in kwargs else kwargs.pop('chunks')
         re = ZarrDataIO(
             data=h5dataset,