Display valid Enum values in Coerce

alecthomas · Feb 15, 2022 · 7caa30b · 7caa30b
1 parent 980a55f
commit 7caa30b
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/voluptuous/validators.py b/voluptuous/validators.py
@@ -95,6 +95,8 @@ def __call__(self, v):
             return self.type(v)
         except (ValueError, TypeError, InvalidOperation):
             msg = self.msg or ('expected %s' % self.type_name)
+            if not self.msg and issubclass(self.type, Enum):
+                msg += " or one of %s" % [e.value for e in self.type]
             raise CoerceInvalid(msg)
 
     def __repr__(self):