Fix #230 XmlSerializer allow empty strings in attribute values

tefra · Aug 12, 2020 · 2112bd2 · 2112bd2
1 parent 4f5d247
commit 2112bd2
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/xsdata/formats/dataclass/serializers/utils.py b/xsdata/formats/dataclass/serializers/utils.py
@@ -22,11 +22,14 @@ def set_attribute(element: Element, key: Any, value: Any, namespaces: Namespaces
         if key == QNames.XSI_NIL and (element.text or len(element) > 0):
             return
 
+        if isinstance(value, list) and len(value) == 0:
+            return
+
         key = SerializeUtils.resolve_qname(key, namespaces)
         value = SerializeUtils.resolve_qname(value, namespaces)
         value = to_xml(value, namespaces)
 
-        if value:
+        if value is not None:
             element.set(key, value)
 
     @staticmethod