Fix unit test in Python3.5

python/paddle/fluid/__init__.py

@@ -46,7 +46,7 @@ from . import transpiler
 from .param_attr import ParamAttr, WeightNormParamAttr
 from .data_feeder import DataFeeder
 from .core import LoDTensor, LoDTensorArray, CPUPlace, CUDAPlace, CUDAPinnedPlace, Scope
-from .transpiler import DistributeTranspiler, \
+from .transpiler import DistributeTranspiler, InferenceTranspiler, \
     memory_optimize, release_memory, DistributeTranspilerConfig
 from .lod_tensor import create_lod_tensor, create_random_int_lodtensor
 from . import clip

python/paddle/fluid/contrib/tests/test_quantize_transpiler.py

@@ -210,7 +210,7 @@ class TestQuantizeTranspiler(unittest.TestCase):
 
         with fluid.program_guard(main):
             for _ in range(iter):
-                data = train_reader().next()
+                data = next(train_reader())
                 loss_v = exe.run(program=main,
                                  feed=feeder.feed(data),
                                  fetch_list=[loss])

python/paddle/fluid/transpiler/__init__.py

@@ -15,6 +15,7 @@
 from __future__ import print_function
 
 from .distribute_transpiler import DistributeTranspiler, DistributeTranspilerConfig
+from .inference_transpiler import InferenceTranspiler
 from .memory_optimization_transpiler import memory_optimize, release_memory
 from .ps_dispatcher import HashName, RoundRobin