Index: management.py
===================================================================
--- management.py	(revisión: 5724)
+++ management.py	(copia de trabajo)
@@ -1180,16 +1180,21 @@
                 pass
 
         # Check unique_together.
+        from types import ListType, TupleType
         for ut in opts.unique_together:
-            for field_name in ut:
-                try:
-                    f = opts.get_field(field_name, many_to_many=True)
-                except models.FieldDoesNotExist:
-                    e.add(opts, '"unique_together" refers to %s, a field that doesn\'t exist. Check your syntax.' % field_name)
-                else:
-                    if isinstance(f.rel, models.ManyToManyRel):
-                        e.add(opts, '"unique_together" refers to %s. ManyToManyFields are not supported in unique_together.' % f.name)
-
+            ut_type = type(ut)
+            if ut_type == ListType or ut_type == TupleType:
+	            for field_name in ut:
+	                try:
+	                    f = opts.get_field(field_name, many_to_many=True)
+	                except models.FieldDoesNotExist:
+	                    e.add(opts, '"unique_together" refers to %s, a field that doesn\'t exist. Check your syntax.' % field_name)
+	                else:
+	                    if isinstance(f.rel, models.ManyToManyRel):
+	                        e.add(opts, '"unique_together" refers to %s. ManyToManyFields are not supported in unique_together.' % f.name)
+            else:
+                e.add(opts, '"unique_together" refers to %s, they must be tuples not strings in a tuple' % str(opts.unique_together))
+                break
     return len(e.errors)
 
 def validate(outfile=sys.stdout, silent_success=False):