Style fixes

Author: fchollet

keras/callbacks.py

@@ -479,6 +479,8 @@ def on_epoch_end(self, epoch, logs={}):
                 else:
                     test_function = self.model._test
                 names = [v.name for v in test_function.inputs]
+                # TODO: implement batched calls to sess.run
+                # (current call will likely go OOM on GPU)
                 feed_dict = dict(zip(names, self.model.validation_data))
                 result = self.sess.run([self.merged], feed_dict=feed_dict)
                 summary_str = result[0]

keras/layers/core.py

@@ -108,7 +108,7 @@ def __call__(self, X, mask=None, train=False):
         layer.name = "dummy"
         layer.input = X
         if hasattr(self, 'get_input_mask'):
-            layer.get_input_mask = lambda _: mask 
+            layer.get_input_mask = lambda _: mask
         # set temporary previous
         tmp_previous = None
         if hasattr(self, 'previous'):
@@ -136,7 +136,7 @@ def set_previous(self, layer, reset_weights=True):
         if layer.get_output_mask() is not None:
             assert self.supports_masked_input(), 'Cannot connect non-masking layer to layer with masked output.'
         if not reset_weights:
-            assert layer.output_shape == self.input_shape, ('Cannot connect layers without resetting weights: ' + 
+            assert layer.output_shape == self.input_shape, ('Cannot connect layers without resetting weights: ' +
                                                             'expected input with shape ' +
                                                             str(self.input_shape) +
                                                             ' but previous layer has output_shape ' +