MAINT: Cleanup some imports involving reduce.

Because reduce has been available in functools since Python 2.6 we
can get rid of the version checks we currently have before we import
it.

Also removes some reduce related skips in tools/py3tool.py. We were
already skipping the reduce fixer so this has no effect other than
cleaning up the code.

2 files changed, 2 insertions, 5 deletions

diff --git a/numpy/lib/arrayterator.py b/numpy/lib/arrayterator.py
index b71e9a123..360d61bc5 100644
--- a/numpy/lib/arrayterator.py
+++ b/numpy/lib/arrayterator.py
@@ -14,8 +14,7 @@ from operator import mul
 __all__ = ['Arrayterator']
 
 import sys
-if sys.version_info[0] >= 3:
-    from functools import reduce
+from functools import reduce
 
 class Arrayterator(object):
     """
diff --git a/numpy/lib/tests/test_arrayterator.py b/numpy/lib/tests/test_arrayterator.py
index 28feb4824..3fa15fef1 100644
--- a/numpy/lib/tests/test_arrayterator.py
+++ b/numpy/lib/tests/test_arrayterator.py
@@ -1,15 +1,13 @@
 from __future__ import division, absolute_import
 
 from operator import mul
+from functools import reduce
 
 import numpy as np
 from numpy.random import randint
 from numpy.lib import Arrayterator
 from numpy.testing import assert_
 
-import sys
-if sys.version_info[0] >= 3:
-    from functools import reduce
 
 def test():
     np.random.seed(np.arange(10))