diff --git a/gaphas/__init__.py b/gaphas/__init__.py
index a042704..7afe943 100644
--- a/gaphas/__init__.py
+++ b/gaphas/__init__.py
@@ -36,8 +36,6 @@ See the License for the specific language governing permissions and
 limitations under the License.
 """
 
-from __future__ import absolute_import
-
 __version__ = "$Revision$"
 # $HeadURL$
 
diff --git a/gaphas/aspect.py b/gaphas/aspect.py
index e382c26..5a3ec56 100644
--- a/gaphas/aspect.py
+++ b/gaphas/aspect.py
@@ -2,8 +2,6 @@
 
 Aspects form intermediate items between tools and items.
 """
-from __future__ import absolute_import
-
 import sys
 import warnings
 from builtins import object
diff --git a/gaphas/canvas.py b/gaphas/canvas.py
index 115af70..796381a 100644
--- a/gaphas/canvas.py
+++ b/gaphas/canvas.py
@@ -26,8 +26,6 @@ To get connecting items (i.e. all lines connected to a class)::
     lines = (c.item for c in canvas.get_connections(connected=item))
 
 """
-from __future__ import absolute_import
-
 import logging
 from builtins import map
 from builtins import next
diff --git a/gaphas/constraint.py b/gaphas/constraint.py
index 8ec9e4c..1bc8246 100644
--- a/gaphas/constraint.py
+++ b/gaphas/constraint.py
@@ -27,11 +27,6 @@ New constraint class should derive from Constraint class abstract
 class and implement `Constraint.solve_for(Variable)` method to update
 a variable with appropriate value.
 """
-
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-
 from builtins import object
 import math
 
diff --git a/gaphas/decorators.py b/gaphas/decorators.py
index ad10fb8..793d20a 100644
--- a/gaphas/decorators.py
+++ b/gaphas/decorators.py
@@ -1,8 +1,6 @@
 """
 Custom decorators.
 """
-from __future__ import print_function
-
 import threading
 from builtins import object
 
diff --git a/gaphas/examples.py b/gaphas/examples.py
index c6b06eb..63b7aa4 100644
--- a/gaphas/examples.py
+++ b/gaphas/examples.py
@@ -2,9 +2,6 @@
 Simple example items.
 These items are used in various tests.
 """
-from __future__ import absolute_import
-from __future__ import division
-
 from gaphas.connector import Handle, PointPort, LinePort, Position
 from gaphas.item import Element, Item, NW, NE, SW, SE
 from gaphas.solver import WEAK
diff --git a/gaphas/freehand.py b/gaphas/freehand.py
index 8affc5c..7da4029 100644
--- a/gaphas/freehand.py
+++ b/gaphas/freehand.py
@@ -10,8 +10,6 @@ Cairo context using Steve Hanov's freehand drawing code.
 See: http://stevehanov.ca/blog/index.php?id=33 and
      http://stevehanov.ca/blog/index.php?id=93
 """
-from __future__ import absolute_import
-
 from builtins import object
 from math import sqrt
 from random import Random
diff --git a/gaphas/geometry.py b/gaphas/geometry.py
index 72b683d..5341bb5 100644
--- a/gaphas/geometry.py
+++ b/gaphas/geometry.py
@@ -7,8 +7,6 @@ intersections).
 A point is represented as a tuple `(x, y)`.
 
 """
-from __future__ import division
-
 from builtins import object
 from math import sqrt
 
diff --git a/gaphas/guide.py b/gaphas/guide.py
index ee34d19..5e2c064 100644
--- a/gaphas/guide.py
+++ b/gaphas/guide.py
@@ -1,8 +1,6 @@
 """
 Module implements guides when moving items and handles around.
 """
-from __future__ import division
-
 import sys
 from builtins import map
 from builtins import object
diff --git a/gaphas/item.py b/gaphas/item.py
index 43886d4..4a1afce 100644
--- a/gaphas/item.py
+++ b/gaphas/item.py
@@ -1,8 +1,6 @@
 """
 Basic items.
 """
-from __future__ import absolute_import
-
 from builtins import map
 from builtins import object
 from builtins import range
diff --git a/gaphas/matrix.py b/gaphas/matrix.py
index d729c3d..0130366 100644
--- a/gaphas/matrix.py
+++ b/gaphas/matrix.py
@@ -7,9 +7,6 @@ Matrix
 Small utility class wrapping cairo.Matrix. The `Matrix` class adds
 state preservation capabilities.
 """
-from __future__ import absolute_import
-from __future__ import division
-
 from builtins import object
 
 __version__ = "$Revision$"
diff --git a/gaphas/painter.py b/gaphas/painter.py
index 653f5f9..51a9253 100644
--- a/gaphas/painter.py
+++ b/gaphas/painter.py
@@ -6,8 +6,6 @@ Painters can be swapped in and out.
 Each painter takes care of a layer in the canvas (such as grid, items
 and handles).
 """
-from __future__ import division
-
 from builtins import object
 
 from cairo import ANTIALIAS_NONE, LINE_JOIN_ROUND
diff --git a/gaphas/quadtree.py b/gaphas/quadtree.py
index 50861a4..b8d2298 100644
--- a/gaphas/quadtree.py
+++ b/gaphas/quadtree.py
@@ -17,10 +17,6 @@ as a Q-tree. All forms of Quadtrees share some common features:
 
 (From Wikipedia, the free encyclopedia)
 """
-from __future__ import absolute_import
-from __future__ import division
-from __future__ import print_function
-
 import operator
 from builtins import map
 from builtins import object
diff --git a/gaphas/segment.py b/gaphas/segment.py
index f5948d8..a13639a 100644
--- a/gaphas/segment.py
+++ b/gaphas/segment.py
@@ -1,8 +1,6 @@
 """
 Allow for easily adding segments to lines.
 """
-from __future__ import division
-
 import sys
 from builtins import object
 from builtins import zip
diff --git a/gaphas/solver.py b/gaphas/solver.py
index fb433a4..64aae24 100644
--- a/gaphas/solver.py
+++ b/gaphas/solver.py
@@ -33,10 +33,6 @@ every constraint is being asked to solve itself
 (`constraint.Constraint.solve_for()` method) changing appropriate
 variables to make the constraint valid again.
 """
-
-from __future__ import absolute_import
-from __future__ import division
-
 from builtins import object
 
 from gaphas.state import observed, reversible_pair, reversible_property
diff --git a/gaphas/tool.py b/gaphas/tool.py
index ca605ee..d340868 100644
--- a/gaphas/tool.py
+++ b/gaphas/tool.py
@@ -30,9 +30,6 @@ Tools can handle events in different ways
 - event can be ignored
 - tool can handle the event (obviously)
 """
-from __future__ import division
-from __future__ import print_function
-
 from builtins import object
 
 from gi.repository import Gtk, Gdk
diff --git a/gaphas/util.py b/gaphas/util.py
index 6c725f0..950c3aa 100644
--- a/gaphas/util.py
+++ b/gaphas/util.py
@@ -1,8 +1,6 @@
 """Helper functions and classes for Cairo (drawing engine used by the canvas).
 
 """
-from __future__ import division
-
 from math import pi
 
 import cairo
diff --git a/gaphas/view.py b/gaphas/view.py
index 86f4722..d4a2b0a 100644
--- a/gaphas/view.py
+++ b/gaphas/view.py
@@ -1,9 +1,6 @@
 """This module contains everything to display a Canvas on a screen.
 
 """
-from __future__ import absolute_import
-from __future__ import division
-
 from builtins import map
 from builtins import object
 
diff --git a/tests/test_guide.py b/tests/test_guide.py
index 8b0027c..0e053c8 100644
--- a/tests/test_guide.py
+++ b/tests/test_guide.py
@@ -1,7 +1,3 @@
-from __future__ import print_function
-
-from builtins import range
-
 import pytest
 from gi.repository import Gtk
 
diff --git a/tests/test_pickle.py b/tests/test_pickle.py
index 55825d3..9c8778d 100644
--- a/tests/test_pickle.py
+++ b/tests/test_pickle.py
@@ -1,12 +1,8 @@
-from __future__ import print_function
-
 import io
 import pickle
-from builtins import object
 
 import cairo
 import pytest
-from future import standard_library
 from gi.repository import Gtk
 
 from examples import demo
@@ -18,8 +14,6 @@ from gaphas.view import View, GtkView
 # Ensure extra pickle reducers/reconstructors are loaded:
 import gaphas.picklers
 
-standard_library.install_aliases()
-
 
 class MyPickler(pickle.Pickler):
     def save(self, obj, save_persistent_id=True):
diff --git a/tests/test_segment.py b/tests/test_segment.py
index 1780615..33c7fa7 100644
--- a/tests/test_segment.py
+++ b/tests/test_segment.py
@@ -1,8 +1,6 @@
 """Test segment aspects for items.
 
 """
-from __future__ import print_function
-
 import pytest
 
 from gaphas.canvas import Canvas
diff --git a/tests/test_solver.py b/tests/test_solver.py
index ef949e8..958fb2c 100644
--- a/tests/test_solver.py
+++ b/tests/test_solver.py
@@ -1,9 +1,6 @@
 """Test constraint solver.
 
 """
-from __future__ import division
-from __future__ import print_function
-
 from timeit import Timer
 
 import pytest
diff --git a/tests/test_view.py b/tests/test_view.py
index f64704e..538f709 100644
--- a/tests/test_view.py
+++ b/tests/test_view.py
@@ -1,8 +1,6 @@
 """Test cases for the View class.
 
 """
-from __future__ import division
-
 import math
 
 import pytest