Fix small bug

kvasios · Jun 5, 2019 · 84ad444 · 84ad444
1 parent ba6ed7a
commit 84ad444
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/urdfpy/urdf.py b/urdfpy/urdf.py
@@ -3010,7 +3010,8 @@ def _from_xml(cls, node, path):
 
     def _to_xml(self, parent, path):
         node = self._unparse(path)
-        extra_tree = ET.fromstring(self.other_xml)
-        for child in extra_tree:
-            node.append(child)
+        if self.other_xml:
+            extra_tree = ET.fromstring(self.other_xml)
+            for child in extra_tree:
+                node.append(child)
         return node