PEP8 : re-order imports in mlab.py

Author: tacaswell

lib/matplotlib/mlab.py

@@ -167,8 +167,6 @@
 
 import six
 from six.moves import map, xrange, zip
-if six.PY3:
-    long = int
 
 import copy
 import csv
@@ -177,12 +175,17 @@
 import warnings
 
 import numpy as np
-ma = np.ma
 from matplotlib import verbose
 
 import matplotlib.cbook as cbook
 from matplotlib import docstring
 from matplotlib.path import Path
+import math
+
+ma = np.ma
+
+if six.PY3:
+    long = int
 
 
 def logspace(xmin, xmax, N):
@@ -2065,8 +2068,6 @@ def movavg(x, n):
 
 """
 
-import math
-
 
 # *****************************************************************************
 # Globals