Add pylint check for W0611 unused-import in ci_sanity.sh and fix existing pylint errors.

PiperOrigin-RevId: 184790548

tensorflow/contrib/copy_graph/python/util/copy_test.py

@@ -17,9 +17,7 @@ from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function
 
-import numpy as np
 from tensorflow.contrib.copy_graph.python.util import copy_elements
-from tensorflow.contrib.framework.python.framework import tensor_util
 from tensorflow.python.client import session as session_lib
 from tensorflow.python.framework import constant_op
 from tensorflow.python.framework import ops

tensorflow/contrib/eager/python/examples/rnn_colorbot/rnn_colorbot.py

@@ -65,7 +65,6 @@ import six
 import tensorflow as tf
 
 from tensorflow.contrib.eager.python import tfe
-from tensorflow.python.eager import context
 
 try:
   import matplotlib.pyplot as plt  # pylint: disable=g-import-not-at-top

tensorflow/contrib/framework/python/ops/accumulate_n_v2_eager_test.py

@@ -27,16 +27,11 @@ import numpy as np
 from tensorflow.contrib.framework.python.ops import accumulate_n_v2 as av2
 
 from tensorflow.python.eager import backprop
-from tensorflow.python.eager import context as eager_context
-from tensorflow.python.eager import tape
 
 
 from tensorflow.python.framework import constant_op
-from tensorflow.python.framework import dtypes as dtypes_lib
 from tensorflow.python.framework import ops
 from tensorflow.python.framework import test_util
-from tensorflow.python.ops import gradients
-from tensorflow.python.ops import math_ops
 from tensorflow.python.ops import resource_variable_ops
 from tensorflow.python.platform import test
 

tensorflow/contrib/framework/python/ops/accumulate_n_v2_test.py

@@ -22,7 +22,6 @@ import numpy as np
 
 from tensorflow.contrib.framework.python.ops import accumulate_n_v2 as av2
 
-from tensorflow.python.framework import constant_op
 from tensorflow.python.framework import dtypes as dtypes_lib
 from tensorflow.python.framework import ops
 from tensorflow.python.framework import test_util

tensorflow/contrib/framework/python/ops/variables.py

@@ -32,9 +32,8 @@ from tensorflow.python.framework import ops
 from tensorflow.python.ops import array_ops
 from tensorflow.python.ops import control_flow_ops
 from tensorflow.python.ops import variable_scope
-from tensorflow.python.ops import gen_state_ops
-from tensorflow.python.platform import tf_logging as logging
 from tensorflow.python.platform import resource_loader
+from tensorflow.python.platform import tf_logging as logging
 from tensorflow.python.training import saver as tf_saver
 from tensorflow.python.training import training_util
 from tensorflow.python.util.deprecation import deprecated

tensorflow/contrib/image/python/kernel_tests/single_image_random_dot_stereograms_ops_test.py

@@ -18,13 +18,8 @@ from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function
 
-import numpy as np
-
-from six.moves import xrange  # pylint: disable=redefined-builtin
-
 from tensorflow.contrib.image.python.ops.single_image_random_dot_stereograms \
     import single_image_random_dot_stereograms
-from tensorflow.python.client import session
 from tensorflow.python.framework import constant_op
 from tensorflow.python.framework import test_util
 from tensorflow.python.platform import googletest

tensorflow/contrib/learn/python/learn/datasets/base.py

@@ -23,13 +23,11 @@ import csv
 import os
 from os import path
 import random
-import tempfile
 import time
 
 import numpy as np
 from six.moves import urllib
 
-from tensorflow.contrib.framework import deprecated
 from tensorflow.python.platform import gfile
 
 Dataset = collections.namedtuple('Dataset', ['data', 'target'])

tensorflow/contrib/learn/python/learn/ops/ops_test.py

@@ -20,7 +20,6 @@ from __future__ import print_function
 
 import numpy as np
 
-from tensorflow.contrib.layers import conv2d
 from tensorflow.contrib.learn.python.learn import ops
 from tensorflow.python.framework import constant_op
 from tensorflow.python.framework import dtypes

tensorflow/contrib/model_pruning/python/layers/layers.py

@@ -21,7 +21,6 @@ from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function
 
-import numpy as np
 import six
 
 from tensorflow.contrib.framework.python.ops import add_arg_scope

tensorflow/contrib/nn/python/ops/alpha_dropout.py

@@ -18,7 +18,6 @@ from __future__ import print_function
 
 import numbers
 
-from tensorflow.python.framework import dtypes
 from tensorflow.python.framework import ops
 from tensorflow.python.framework import tensor_shape
 from tensorflow.python.framework import tensor_util
@@ -26,7 +25,6 @@ from tensorflow.python.ops import array_ops
 from tensorflow.python.ops import random_ops
 from tensorflow.python.ops import gen_math_ops
 from tensorflow.python.ops import math_ops
-from tensorflow.python.ops import nn_impl
 
 
 def alpha_dropout(x, keep_prob, noise_shape=None, seed=None, name=None): # pylint: disable=invalid-name

tensorflow/contrib/nn/python/ops/alpha_dropout_test.py

@@ -21,7 +21,6 @@ from __future__ import print_function
 from tensorflow.contrib.nn.python.ops.alpha_dropout import alpha_dropout
 from tensorflow.python.framework import constant_op
 from tensorflow.python.framework import dtypes
-from tensorflow.python.framework import ops
 from tensorflow.python.ops import array_ops
 from tensorflow.python.ops import random_ops
 from tensorflow.python.ops import nn_impl

tensorflow/contrib/opt/python/training/nadam_optimizer_test.py

@@ -21,12 +21,9 @@ from __future__ import print_function
 import numpy as np
 
 from tensorflow.contrib.opt.python.training import nadam_optimizer
-from tensorflow.python.client import session
 from tensorflow.python.framework import constant_op
 from tensorflow.python.framework import dtypes
 from tensorflow.python.framework import ops
-from tensorflow.python.ops import array_ops
-from tensorflow.python.ops import math_ops
 from tensorflow.python.ops import resource_variable_ops
 from tensorflow.python.ops import variables
 from tensorflow.python.platform import test

tensorflow/contrib/periodic_resample/python/ops/periodic_resample_op.py

@@ -18,13 +18,14 @@ from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function
 
-
+# pylint: disable=unused-import
 from tensorflow.contrib.periodic_resample.python.ops import gen_periodic_resample_op
 
 from tensorflow.contrib.periodic_resample.python.ops.gen_periodic_resample_op import periodic_resample
 
 from tensorflow.contrib.util import loader
 from tensorflow.python.platform import resource_loader
+# pylint: enable=unused-import
 
 _periodic_resample_op = loader.load_op_library(
     resource_loader.get_path_to_datafile('_periodic_resample_op.so'))

tensorflow/contrib/reduce_slice_ops/python/kernel_tests/reduce_slice_ops_test.py

@@ -19,7 +19,6 @@ from __future__ import division
 from __future__ import print_function
 
 import numpy as np
-import unittest
 
 from tensorflow.contrib.reduce_slice_ops.python.ops import reduce_slice_ops
 from tensorflow.python.framework.test_util import TensorFlowTestCase

tensorflow/contrib/rnn/python/kernel_tests/core_rnn_cell_test.py

@@ -39,8 +39,6 @@ from tensorflow.python.ops import rnn_cell_impl
 from tensorflow.python.ops import variable_scope
 from tensorflow.python.ops import variables as variables_lib
 from tensorflow.python.platform import test
-from tensorflow.python.framework import test_util
-from tensorflow.contrib.rnn.python.ops import rnn_cell as contrib_rnn_cell
 
 # pylint: enable=protected-access
 Linear = core_rnn_cell._Linear  # pylint: disable=invalid-name

tensorflow/contrib/rnn/python/ops/rnn_cell.py

@@ -32,12 +32,12 @@ from tensorflow.python.ops import array_ops
 from tensorflow.python.ops import clip_ops
 from tensorflow.python.ops import init_ops
 from tensorflow.python.ops import math_ops
+from tensorflow.python.ops import nn_impl  # pylint: disable=unused-import
 from tensorflow.python.ops import nn_ops
+from tensorflow.python.ops import partitioned_variables  # pylint: disable=unused-import
 from tensorflow.python.ops import random_ops
 from tensorflow.python.ops import rnn_cell_impl
 from tensorflow.python.ops import variable_scope as vs
-from tensorflow.python.ops import partitioned_variables
-from tensorflow.python.ops import nn_impl
 from tensorflow.python.platform import tf_logging as logging
 from tensorflow.python.util import nest
 

tensorflow/contrib/session_bundle/gc.py

@@ -70,7 +70,6 @@ import heapq
 import math
 import os
 
-from six.moves import xrange  # pylint: disable=redefined-builtin
 from tensorflow.python.platform import gfile
 from tensorflow.python.util.deprecation import deprecated
 

tensorflow/contrib/sparsemax/python/ops/sparsemax.py

@@ -23,7 +23,6 @@ from tensorflow.python.framework import ops
 from tensorflow.python.ops import array_ops
 from tensorflow.python.ops import math_ops
 from tensorflow.python.ops import nn
-from tensorflow.python.platform import resource_loader
 
 __all__ = ["sparsemax"]
 

tensorflow/contrib/sparsemax/python/ops/sparsemax_loss.py

@@ -18,8 +18,6 @@ from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function
 
-from tensorflow.contrib.util import loader
-from tensorflow.python.platform import resource_loader
 from tensorflow.python.framework import ops
 from tensorflow.python.ops import array_ops
 from tensorflow.python.ops import math_ops

tensorflow/examples/label_image/label_image.py

@@ -18,7 +18,6 @@ from __future__ import division
 from __future__ import print_function
 
 import argparse
-import sys
 
 import numpy as np
 import tensorflow as tf

tensorflow/examples/tutorials/mnist/input_data.py

@@ -18,6 +18,7 @@ from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function
 
+# pylint: disable=unused-import
 import gzip
 import os
 import tempfile
@@ -27,3 +28,4 @@ from six.moves import urllib
 from six.moves import xrange  # pylint: disable=redefined-builtin
 import tensorflow as tf
 from tensorflow.contrib.learn.python.learn.datasets.mnist import read_data_sets
+# pylint: enable=unused-import

tensorflow/python/client/session_test.py

@@ -31,7 +31,6 @@ from tensorflow.core.framework import attr_value_pb2
 from tensorflow.core.framework import types_pb2
 from tensorflow.core.lib.core import error_codes_pb2
 from tensorflow.core.protobuf import config_pb2
-from tensorflow.core.protobuf import rewriter_config_pb2
 from tensorflow.python.client import session
 from tensorflow.python.framework import common_shapes
 from tensorflow.python.framework import constant_op
@@ -48,7 +47,6 @@ from tensorflow.python.ops import control_flow_ops
 from tensorflow.python.ops import data_flow_ops
 from tensorflow.python.ops import gen_control_flow_ops
 from tensorflow.python.ops import math_ops
-from tensorflow.python.ops import random_ops
 # Import resource_variable_ops for the variables-to-tensor implicit conversion.
 from tensorflow.python.ops import resource_variable_ops  # pylint: disable=unused-import
 from tensorflow.python.ops import state_ops

tensorflow/python/framework/load_library.py

@@ -21,10 +21,10 @@ from __future__ import print_function
 import hashlib
 import imp
 import sys
-import threading
+import threading  # pylint: disable=unused-import
 
 from tensorflow.core.framework import op_def_pb2
-from tensorflow.core.lib.core import error_codes_pb2
+from tensorflow.core.lib.core import error_codes_pb2  # pylint: disable=unused-import
 from tensorflow.python import pywrap_tensorflow as py_tf
 from tensorflow.python.framework import errors_impl
 from tensorflow.python.util import compat

tensorflow/python/framework/test_util.py

@@ -49,7 +49,7 @@ from tensorflow.python.client import device_lib
 from tensorflow.python.client import session
 from tensorflow.python.eager import backprop
 from tensorflow.python.eager import context
-from tensorflow.python.eager import tape
+from tensorflow.python.eager import tape  # pylint: disable=unused-import
 from tensorflow.python.framework import device as pydev
 from tensorflow.python.framework import dtypes
 from tensorflow.python.framework import errors

tensorflow/python/kernel_tests/conv2d_transpose_test.py

@@ -21,7 +21,6 @@ from __future__ import print_function
 import numpy as np
 from six.moves import xrange  # pylint: disable=redefined-builtin
 
-from tensorflow.python.client import device_lib
 from tensorflow.python.framework import constant_op
 from tensorflow.python.framework import dtypes
 from tensorflow.python.ops import array_ops

tensorflow/python/kernel_tests/decode_bmp_op_test.py

@@ -20,7 +20,6 @@ from __future__ import print_function
 
 from tensorflow.python.framework import constant_op
 from tensorflow.python.framework import dtypes
-from tensorflow.python.framework import errors_impl
 from tensorflow.python.ops import array_ops
 from tensorflow.python.ops import image_ops
 from tensorflow.python.platform import test

tensorflow/python/kernel_tests/decode_raw_op_test.py

@@ -19,7 +19,6 @@ from __future__ import division
 from __future__ import print_function
 
 import numpy as np
-import sys
 
 from tensorflow.python.framework import dtypes
 from tensorflow.python.ops import array_ops

tensorflow/python/kernel_tests/fifo_queue_test.py

@@ -19,7 +19,6 @@ from __future__ import division
 from __future__ import print_function
 
 import random
-import re
 import time
 
 import numpy as np

tensorflow/python/kernel_tests/random/random_shuffle_queue_test.py

@@ -19,7 +19,6 @@ from __future__ import division
 from __future__ import print_function
 
 import random
-import re
 import time
 
 import numpy as np

tensorflow/python/kernel_tests/softmax_op_test.py

@@ -18,8 +18,6 @@ from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function
 
-import sys
-
 import numpy as np
 
 from tensorflow.python.framework import constant_op

tensorflow/python/ops/candidate_sampling_ops.py

@@ -20,9 +20,9 @@ from __future__ import division
 from __future__ import print_function
 
 from tensorflow.python.framework import random_seed
-from tensorflow.python.ops import array_ops
+from tensorflow.python.ops import array_ops  # pylint: disable=unused-import
 from tensorflow.python.ops import gen_candidate_sampling_ops
-from tensorflow.python.ops import math_ops
+from tensorflow.python.ops import math_ops  # pylint: disable=unused-import
 from tensorflow.python.util.tf_export import tf_export
 
 

tensorflow/python/ops/control_flow_ops.py

@@ -55,7 +55,6 @@ import collections
 import functools
 
 import six
-from six.moves import xrange  # pylint: disable=redefined-builtin
 
 from tensorflow.core.framework import attr_value_pb2
 from tensorflow.core.protobuf import control_flow_pb2

tensorflow/python/ops/gradients_impl.py

@@ -35,7 +35,7 @@ from tensorflow.python.framework import tensor_shape
 from tensorflow.python.framework import tensor_util
 from tensorflow.python.ops import array_grad  # pylint: disable=unused-import
 from tensorflow.python.ops import array_ops
-from tensorflow.python.ops import check_ops
+from tensorflow.python.ops import check_ops  # pylint: disable=unused-import
 from tensorflow.python.ops import control_flow_grad  # pylint: disable=unused-import
 from tensorflow.python.ops import control_flow_ops
 from tensorflow.python.ops import control_flow_util

tensorflow/python/ops/nn_grad_test.py

@@ -24,7 +24,7 @@ from tensorflow.python.framework import constant_op
 from tensorflow.python.framework import dtypes
 from tensorflow.python.ops import gradient_checker
 from tensorflow.python.ops import gradients_impl
-from tensorflow.python.ops import nn_grad
+from tensorflow.python.ops import nn_grad  # pylint: disable=unused-import
 from tensorflow.python.ops import nn_ops
 from tensorflow.python.platform import test
 

tensorflow/python/ops/nn_impl.py

@@ -27,7 +27,7 @@ from tensorflow.python.framework import ops
 from tensorflow.python.ops import array_ops
 from tensorflow.python.ops import candidate_sampling_ops
 from tensorflow.python.ops import embedding_ops
-from tensorflow.python.ops import gen_array_ops
+from tensorflow.python.ops import gen_array_ops  # pylint: disable=unused-import
 from tensorflow.python.ops import gen_nn_ops
 from tensorflow.python.ops import math_ops
 from tensorflow.python.ops import nn_ops

tensorflow/python/tools/saved_model_cli.py

@@ -38,7 +38,7 @@ from tensorflow.core.framework import types_pb2
 from tensorflow.python.client import session
 from tensorflow.python.debug.wrappers import local_cli_wrapper
 from tensorflow.python.framework import ops as ops_lib
-from tensorflow.python.platform import app
+from tensorflow.python.platform import app  # pylint: disable=unused-import
 from tensorflow.python.saved_model import loader
 from tensorflow.python.tools import saved_model_utils
 

tensorflow/python/training/training_ops.py

@@ -19,7 +19,7 @@ from __future__ import absolute_import
 from __future__ import division
 from __future__ import print_function
 
-from tensorflow.python.training import gen_training_ops
+from tensorflow.python.training import gen_training_ops  # pylint: disable=unused-import
 # go/tf-wildcard-import
 # pylint: disable=wildcard-import
 from tensorflow.python.training.gen_training_ops import *

tensorflow/tools/ci_build/ci_sanity.sh

@@ -185,7 +185,8 @@ do_pylint() {
   # C0330 bad-continuation
   # C0301 line-too-long
   # C0326 bad-whitespace
-  grep -E '(\[E|\[W0311|\[W0312|\[C0330|\[C0301|\[C0326)' ${OUTPUT_FILE} > ${ERRORS_FILE}
+  # W0611 unused-import
+  grep -E '(\[E|\[W0311|\[W0312|\[C0330|\[C0301|\[C0326|\[W0611)' ${OUTPUT_FILE} > ${ERRORS_FILE}
 
   N_ERRORS=0
   while read -r LINE; do