fixed import path to DebugMode in tensor/tests/test_opt

theano/tensor/tests/test_opt.py

@@ -13,7 +13,7 @@ from theano import pprint
 import numpy
 #import scalar_opt
 
-from theano.sandbox.debugmode import DebugMode
+from theano.compile.debugmode import DebugMode
 from theano import function