message: Fix basic arithmetic fail + make loop pythonic
diff: @@ -168,7 +168,7 @@ def main(_):
  # compute in batches to avoid OOM on GPUs
  accuracy_l = []
  - for i in range(50):
  + for _ in range(20):
  batch = mnist.test.next_batch(500, shuffle=False)
  accuracy_l.append(accuracy.eval(feed_dict={x: batch[0], y_: batch[1], keep_prob: 1.0}))
  print('test accuracy %g' % numpy.mean(accuracy_l))
  