Merge pull request #2864 from chainer/v2-check-none-hyperparam-proxy-…

…descriptor [backport] Check for None in HyperparameterProxy descriptor
chainer · Jun 15, 2017 · bd49e73 · bd49e73
2 parents eef0935 + 283dc68
commit bd49e73
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/chainer/optimizer.py b/chainer/optimizer.py
@@ -595,6 +595,8 @@ def __init__(self, attr_name):
         self.__doc__ = 'Alias to ``self.hyperparam.{}``'.format(attr_name)
 
     def __get__(self, obj, type=None):
+        if obj is None:
+            return self
         return getattr(obj.hyperparam, self._attr_name)
 
     def __set__(self, obj, value):