PEP8 cleanups

meshmode/mesh/__init__.py

-from __future__ import division
-from __future__ import absolute_import
-from six.moves import range
+from __future__ import division, absolute_import
 
 __copyright__ = "Copyright (C) 2010,2012,2013 Andreas Kloeckner, Michael Tom"
 
@@ -24,7 +22,9 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 """
 
+from six.moves import range
 import six
+
 import numpy as np
 import modepy as mp
 import numpy.linalg as la