#168 - Experimental JSON CAS support

- Better test if using a TextIOWrapper is really necessary
dkpro · Sep 20, 2021 · c3c8e58 · c3c8e58
1 parent 95da404
commit c3c8e58
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/cassis/json.py b/cassis/json.py
@@ -268,7 +268,7 @@ def serialize(
             json_fs = self._serialize_feature_structure(fs)
             feature_structures.append(json_fs)
 
-        if not isinstance(sink, TextIOBase):
+        if sink and not isinstance(sink, TextIOBase):
             sink = TextIOWrapper(sink, encoding="utf-8", write_through=True)
 
         if sink: