remove some try/except + consistency not works with submulti

tiramisu/storage/dictionary/option.py

@@ -19,7 +19,7 @@
 # ____________________________________________________________
 from ...i18n import _
 from ...setting import undefined
-from ...error import ConfigError, ContextError
+from ...error import ConfigError
 static_tuple = tuple()
 static_set = frozenset()
 
@@ -94,15 +94,12 @@ class StorageBase(object):
             _setattr(self, '_default', default)
 
         if is_multi and default_multi is not None:
-            try:
-                self._validate(default_multi)
-            except ValueError as err:  # pragma: optional cover
+            err = self._validate(default_multi)
+            if err:
                 raise ValueError(_("invalid default_multi value {0} "
                                    "for option {1}: {2}").format(
                                        str(default_multi),
                                        self.impl_getname(), str(err)))
-            except ContextError, err:
-                pass
             _setattr(self, '_default_multi', default_multi)
 
     # information

tiramisu/storage/sqlalchemy/option.py

@@ -326,7 +326,9 @@ class _Base(SqlAlchemyBase):
     def _set_default_values(self, default, default_multi):
         self._default = default
         if self.impl_is_multi() and default_multi is not None:
-            self._validate(default_multi)
+            err = self._validate(default_multi)
+            if err:
+                raise err
             self._default_multi = default_multi
 
     def _get_consistencies(self):