fix hint in None case

charles-cooper · charles-cooper · commit f076af064594 · 2024-09-10T13:12:01.000-04:00
diff --git a/vyper/exceptions.py b/vyper/exceptions.py
@@ -146,6 +146,9 @@ def format_annotation(self, value):
         return node_msg
 
     def _add_hint(self, msg):
+        hint = self.hint
+        if hint is None:
+            return msg
         return msg + f"\n  (hint: {self.hint})"
 
     def __str__(self):
