diff -ur kivy-2.3.1b/kivy/lang/parser.py kivy-2.3.1/kivy/lang/parser.py
--- kivy-2.3.1b/kivy/lang/parser.py	2025-10-19 13:04:51.542798827 +1300
+++ kivy-2.3.1/kivy/lang/parser.py	2025-10-19 13:05:16.007104601 +1300
@@ -230,11 +230,7 @@
 
         if isinstance(node, (ast.JoinedStr, ast.BoolOp)):
             for n in node.values:
-                if isinstance(n, ast.Str):
-                    # NOTE: required for python3.6
-                    yield from cls.get_names_from_expression(n.s)
-                else:
-                    yield from cls.get_names_from_expression(n.value)
+                yield from cls.get_names_from_expression(n.value)
 
         if isinstance(node, ast.BinOp):
             yield from cls.get_names_from_expression(node.right)