metadata optional

Jhsmit · Jun 6, 2023 · 27cf0f4 · 27cf0f4
1 parent 5dee7bb
commit 27cf0f4
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/hdxms_datasets/datasets.py b/hdxms_datasets/datasets.py
@@ -51,7 +51,7 @@ class HDXDataSet(object):
     hdx_spec: dict
     """Dictionary with HDX-MS state specification"""
 
-    metadata: Optional[dict]
+    metadata: Optional[dict] = field(default_factory=dict)
     """Optional metadata"""
 
     _cache: dict[tuple[str, str], pd.DataFrame] = field(init=False, default_factory=dict)