diff --git a/taskflow/listeners/base.py b/taskflow/listeners/base.py
index 4d2edf504..f5113a4e6 100644
--- a/taskflow/listeners/base.py
+++ b/taskflow/listeners/base.py
@@ -14,8 +14,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from __future__ import absolute_import
-
 import abc
 
 from oslo_utils import excutils
diff --git a/taskflow/listeners/claims.py b/taskflow/listeners/claims.py
index ae8aabf06..dac74ce41 100644
--- a/taskflow/listeners/claims.py
+++ b/taskflow/listeners/claims.py
@@ -14,8 +14,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from __future__ import absolute_import
-
 import logging
 import os
 
diff --git a/taskflow/listeners/logging.py b/taskflow/listeners/logging.py
index 6ea2ee10a..441a13ed0 100644
--- a/taskflow/listeners/logging.py
+++ b/taskflow/listeners/logging.py
@@ -14,8 +14,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from __future__ import absolute_import
-
 import os
 
 from taskflow import formatters
diff --git a/taskflow/listeners/printing.py b/taskflow/listeners/printing.py
index 2a89b1794..8a690c3ca 100644
--- a/taskflow/listeners/printing.py
+++ b/taskflow/listeners/printing.py
@@ -14,8 +14,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from __future__ import print_function
-
 import sys
 import traceback
 
diff --git a/taskflow/listeners/timing.py b/taskflow/listeners/timing.py
index d8a731205..8634ee00a 100644
--- a/taskflow/listeners/timing.py
+++ b/taskflow/listeners/timing.py
@@ -14,8 +14,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from __future__ import absolute_import
-
 import itertools
 import six
 import time
diff --git a/taskflow/logging.py b/taskflow/logging.py
index 849c99251..7c700f8b9 100644
--- a/taskflow/logging.py
+++ b/taskflow/logging.py
@@ -14,8 +14,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from __future__ import absolute_import
-
 import logging
 
 _BASE = __name__.split(".", 1)[0]
diff --git a/taskflow/persistence/backends/impl_sqlalchemy.py b/taskflow/persistence/backends/impl_sqlalchemy.py
index 19b3b20b7..2dbe6ff32 100644
--- a/taskflow/persistence/backends/impl_sqlalchemy.py
+++ b/taskflow/persistence/backends/impl_sqlalchemy.py
@@ -15,8 +15,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from __future__ import absolute_import
-
 import contextlib
 import copy
 import functools
diff --git a/taskflow/persistence/backends/sqlalchemy/alembic/env.py b/taskflow/persistence/backends/sqlalchemy/alembic/env.py
index 4e0a3ebf9..2094fe459 100644
--- a/taskflow/persistence/backends/sqlalchemy/alembic/env.py
+++ b/taskflow/persistence/backends/sqlalchemy/alembic/env.py
@@ -13,8 +13,6 @@
 #    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 with_statement
 from alembic import context
 from sqlalchemy import engine_from_config, pool
 
diff --git a/taskflow/test.py b/taskflow/test.py
index ace97fc1c..2b1678df3 100644
--- a/taskflow/test.py
+++ b/taskflow/test.py
@@ -14,8 +14,6 @@
 #    License for the specific language governing permissions and limitations
 #    under the License.
 
-from __future__ import absolute_import
-
 import collections
 import logging