X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=PLC%2FMethod.py;fp=PLC%2FMethod.py;h=53d1530472e3f9ac1003179f84aa085c91e6f1b1;hb=9735366c3bf4070802e42ce59d5ba7c94ea8f1f5;hp=f01271dbf2d237f2e6c8072f69ffa0978f9e4317;hpb=af097c90f7138b2d9a0269a3c19eb456139c37db;p=plcapi.git

diff --git a/PLC/Method.py b/PLC/Method.py
index f01271d..53d1530 100644
--- a/PLC/Method.py
+++ b/PLC/Method.py
@@ -298,14 +298,16 @@ class Method:
         """
 
         # If any of a number of types is acceptable
-        if isinstance(expected, Mixed):
+        # try them one by one, if one succeeds then it's fine
+        if expected and isinstance(expected, Mixed):
+            to_raise = None
             for item in expected:
                 try:
                     self.type_check(name, value, item, args)
                     return
                 except PLCInvalidArgument as fault:
-                    pass
-            raise fault
+                    to_raise = fault
+            raise to_raise
 
         # If an authentication structure is expected, save it and
         # authenticate after basic type checking is done.