Sort imports with isort.

This is the result of:

    $ isort --recursive examples templates transformers utils hubconf.py setup.py

transformers/tests/modeling_openai_test.py

@@ -12,14 +12,17 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
 import unittest
 
 from transformers import is_torch_available
 
+from .configuration_common_test import ConfigTester
+from .modeling_common_test import CommonTestCases, ids_tensor
+from .utils import CACHE_DIR, require_torch, slow, torch_device
+
+
 if is_torch_available():
     from transformers import (
         OpenAIGPTConfig,
@@ -29,10 +32,6 @@ if is_torch_available():
         OpenAIGPTDoubleHeadsModel,
     )
 
-from .modeling_common_test import CommonTestCases, ids_tensor
-from .configuration_common_test import ConfigTester
-from .utils import CACHE_DIR, require_torch, slow, torch_device
-
 
 @require_torch
 class OpenAIGPTModelTest(CommonTestCases.CommonModelTester):

transformers/tests/modeling_roberta_test.py

@@ -12,14 +12,17 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
 import unittest
 
 from transformers import is_torch_available
 
+from .configuration_common_test import ConfigTester
+from .modeling_common_test import CommonTestCases, ids_tensor
+from .utils import CACHE_DIR, require_torch, slow, torch_device
+
+
 if is_torch_available():
     import torch
     from transformers import (
@@ -32,10 +35,6 @@ if is_torch_available():
     from transformers.modeling_roberta import RobertaEmbeddings
     from transformers.modeling_roberta import ROBERTA_PRETRAINED_MODEL_ARCHIVE_MAP
 
-from .modeling_common_test import CommonTestCases, ids_tensor
-from .configuration_common_test import ConfigTester
-from .utils import CACHE_DIR, require_torch, slow, torch_device
-
 
 @require_torch
 class RobertaModelTest(CommonTestCases.CommonModelTester):

transformers/tests/modeling_t5_test.py

@@ -12,18 +12,17 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
 import unittest
 
 from transformers import is_torch_available
 
-from .modeling_common_test import CommonTestCases, ids_tensor, floats_tensor
 from .configuration_common_test import ConfigTester
+from .modeling_common_test import CommonTestCases, floats_tensor, ids_tensor
 from .utils import CACHE_DIR, require_torch, slow, torch_device
 
+
 if is_torch_available():
     from transformers import T5Config, T5Model, T5WithLMHeadModel
     from transformers.modeling_t5 import T5_PRETRAINED_MODEL_ARCHIVE_MAP

transformers/tests/modeling_tf_albert_test.py

@@ -12,18 +12,17 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
-import unittest
 import sys
+import unittest
+
+from transformers import AlbertConfig, is_tf_available
 
-from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
 from .configuration_common_test import ConfigTester
+from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
 from .utils import CACHE_DIR, require_tf, slow
 
-from transformers import AlbertConfig, is_tf_available
 
 if is_tf_available():
     import tensorflow as tf

transformers/tests/modeling_tf_auto_test.py

@@ -12,17 +12,16 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
-import unittest
-import shutil
 import logging
+import shutil
+import unittest
 
 from transformers import is_tf_available
 
-from .utils import require_tf, slow, SMALL_MODEL_IDENTIFIER
+from .utils import SMALL_MODEL_IDENTIFIER, require_tf, slow
+
 
 if is_tf_available():
     from transformers import (

transformers/tests/modeling_tf_bert_test.py

@@ -12,18 +12,17 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
-import unittest
 import sys
+import unittest
+
+from transformers import BertConfig, is_tf_available
 
-from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
 from .configuration_common_test import ConfigTester
+from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
 from .utils import CACHE_DIR, require_tf, slow
 
-from transformers import BertConfig, is_tf_available
 
 if is_tf_available():
     import tensorflow as tf

transformers/tests/modeling_tf_common_test.py

@@ -14,23 +14,23 @@
 # limitations under the License.
 from __future__ import absolute_import, division, print_function
 
-import os
 import copy
+import importlib
 import json
 import logging
-import importlib
+import os
 import random
 import shutil
+import sys
+import tempfile
 import unittest
 import uuid
-import tempfile
-
-import sys
 
 from transformers import is_tf_available, is_torch_available
 
 from .utils import require_tf, slow
 
+
 if is_tf_available():
     import tensorflow as tf
     import numpy as np

transformers/tests/modeling_tf_ctrl_test.py

@@ -12,18 +12,17 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
-import unittest
 import sys
+import unittest
+
+from transformers import CTRLConfig, is_tf_available
 
-from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
 from .configuration_common_test import ConfigTester
+from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
 from .utils import CACHE_DIR, require_tf, slow
 
-from transformers import CTRLConfig, is_tf_available
 
 if is_tf_available():
     import tensorflow as tf

transformers/tests/modeling_tf_distilbert_test.py

@@ -12,17 +12,16 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
 import unittest
 
-from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
+from transformers import DistilBertConfig, is_tf_available
+
 from .configuration_common_test import ConfigTester
+from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
 from .utils import CACHE_DIR, require_tf, slow
 
-from transformers import DistilBertConfig, is_tf_available
 
 if is_tf_available():
     import tensorflow as tf

transformers/tests/modeling_tf_gpt2_test.py

@@ -12,18 +12,17 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
-import unittest
 import sys
+import unittest
+
+from transformers import GPT2Config, is_tf_available
 
-from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
 from .configuration_common_test import ConfigTester
+from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
 from .utils import CACHE_DIR, require_tf, slow
 
-from transformers import GPT2Config, is_tf_available
 
 if is_tf_available():
     import tensorflow as tf

transformers/tests/modeling_tf_openai_gpt_test.py

@@ -12,18 +12,17 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
-import unittest
 import sys
+import unittest
+
+from transformers import OpenAIGPTConfig, is_tf_available
 
-from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
 from .configuration_common_test import ConfigTester
+from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
 from .utils import CACHE_DIR, require_tf, slow
 
-from transformers import OpenAIGPTConfig, is_tf_available
 
 if is_tf_available():
     import tensorflow as tf

transformers/tests/modeling_tf_roberta_test.py

@@ -12,17 +12,16 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
 import unittest
 
-from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
+from transformers import RobertaConfig, is_tf_available
+
 from .configuration_common_test import ConfigTester
+from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
 from .utils import CACHE_DIR, require_tf, slow
 
-from transformers import RobertaConfig, is_tf_available
 
 if is_tf_available():
     import tensorflow as tf

transformers/tests/modeling_tf_t5_test.py

@@ -12,18 +12,17 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
-import unittest
 import sys
+import unittest
+
+from transformers import T5Config, is_tf_available
 
-from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
 from .configuration_common_test import ConfigTester
+from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
 from .utils import CACHE_DIR, require_tf, slow
 
-from transformers import T5Config, is_tf_available
 
 if is_tf_available():
     import tensorflow as tf

transformers/tests/modeling_tf_transfo_xl_test.py

@@ -12,18 +12,17 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
-import unittest
 import random
+import unittest
+
+from transformers import TransfoXLConfig, is_tf_available
 
-from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
 from .configuration_common_test import ConfigTester
+from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
 from .utils import CACHE_DIR, require_tf, slow
 
-from transformers import TransfoXLConfig, is_tf_available
 
 if is_tf_available():
     import tensorflow as tf

transformers/tests/modeling_tf_xlm_test.py

@@ -12,14 +12,17 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
 import unittest
 
 from transformers import is_tf_available
 
+from .configuration_common_test import ConfigTester
+from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
+from .utils import CACHE_DIR, require_tf, slow
+
+
 if is_tf_available():
     import tensorflow as tf
     from transformers import (
@@ -31,10 +34,6 @@ if is_tf_available():
         TF_XLM_PRETRAINED_MODEL_ARCHIVE_MAP,
     )
 
-from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
-from .configuration_common_test import ConfigTester
-from .utils import CACHE_DIR, require_tf, slow
-
 
 @require_tf
 class TFXLMModelTest(TFCommonTestCases.TFCommonModelTester):

transformers/tests/modeling_tf_xlnet_test.py

@@ -12,17 +12,20 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
-import os
-import unittest
 import json
+import os
 import random
+import unittest
 
 from transformers import XLNetConfig, is_tf_available
 
+from .configuration_common_test import ConfigTester
+from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
+from .utils import CACHE_DIR, require_tf, slow
+
+
 if is_tf_available():
     import tensorflow as tf
 
@@ -35,10 +38,6 @@ if is_tf_available():
         TF_XLNET_PRETRAINED_MODEL_ARCHIVE_MAP,
     )
 
-from .modeling_tf_common_test import TFCommonTestCases, ids_tensor
-from .configuration_common_test import ConfigTester
-from .utils import CACHE_DIR, require_tf, slow
-
 
 @require_tf
 class TFXLNetModelTest(TFCommonTestCases.TFCommonModelTester):

transformers/tests/modeling_transfo_xl_test.py

@@ -12,24 +12,23 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
-import unittest
 import random
+import unittest
 
 from transformers import is_torch_available
 
+from .configuration_common_test import ConfigTester
+from .modeling_common_test import CommonTestCases, ids_tensor
+from .utils import CACHE_DIR, require_torch, slow, torch_device
+
+
 if is_torch_available():
     import torch
     from transformers import TransfoXLConfig, TransfoXLModel, TransfoXLLMHeadModel
     from transformers.modeling_transfo_xl import TRANSFO_XL_PRETRAINED_MODEL_ARCHIVE_MAP
 
-from .modeling_common_test import CommonTestCases, ids_tensor
-from .configuration_common_test import ConfigTester
-from .utils import CACHE_DIR, require_torch, slow, torch_device
-
 
 @require_torch
 class TransfoXLModelTest(CommonTestCases.CommonModelTester):

transformers/tests/modeling_xlm_test.py

@@ -12,14 +12,17 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
 import unittest
 
 from transformers import is_torch_available
 
+from .configuration_common_test import ConfigTester
+from .modeling_common_test import CommonTestCases, ids_tensor
+from .utils import CACHE_DIR, require_torch, slow, torch_device
+
+
 if is_torch_available():
     from transformers import (
         XLMConfig,
@@ -31,10 +34,6 @@ if is_torch_available():
     )
     from transformers.modeling_xlm import XLM_PRETRAINED_MODEL_ARCHIVE_MAP
 
-from .modeling_common_test import CommonTestCases, ids_tensor
-from .configuration_common_test import ConfigTester
-from .utils import CACHE_DIR, require_torch, slow, torch_device
-
 
 @require_torch
 class XLMModelTest(CommonTestCases.CommonModelTester):

transformers/tests/modeling_xlnet_test.py

@@ -12,17 +12,20 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
-import os
-import unittest
 import json
+import os
 import random
+import unittest
 
 from transformers import is_torch_available
 
+from .configuration_common_test import ConfigTester
+from .modeling_common_test import CommonTestCases, ids_tensor
+from .utils import CACHE_DIR, require_torch, slow, torch_device
+
+
 if is_torch_available():
     import torch
 
@@ -36,10 +39,6 @@ if is_torch_available():
     )
     from transformers.modeling_xlnet import XLNET_PRETRAINED_MODEL_ARCHIVE_MAP
 
-from .modeling_common_test import CommonTestCases, ids_tensor
-from .configuration_common_test import ConfigTester
-from .utils import CACHE_DIR, require_torch, slow, torch_device
-
 
 @require_torch
 class XLNetModelTest(CommonTestCases.CommonModelTester):

transformers/tests/optimization_test.py

@@ -12,15 +12,17 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
+from __future__ import absolute_import, division, print_function
 
-import unittest
 import os
+import unittest
 
 from transformers import is_torch_available
 
+from .tokenization_tests_commons import TemporaryDirectory
+from .utils import require_torch
+
+
 if is_torch_available():
     import torch
 
@@ -33,9 +35,6 @@ if is_torch_available():
         get_linear_schedule_with_warmup,
     )
 
-from .tokenization_tests_commons import TemporaryDirectory
-from .utils import require_torch
-
 
 def unwrap_schedule(scheduler, num_steps=10):
     lrs = []