Possibly deal with a good chunk of the old_divs

SimPEG/Examples/Maps_Mesh2Mesh.py

@@ -4,7 +4,6 @@ from __future__ import print_function
 from __future__ import absolute_import
 from future import standard_library
 standard_library.install_aliases()
-from past.utils import old_div
 from SimPEG import Mesh, Maps, Utils
 
 def run(plotIt=True):
@@ -19,7 +18,7 @@ def run(plotIt=True):
 
     M = Mesh.TensorMesh([100,100])
     h1 = Utils.meshTensor([(6,7,-1.5),(6,10),(6,7,1.5)])
-    h1 = old_div(h1,h1.sum())
+    h1 = h1/h1.sum()
     M2 = Mesh.TensorMesh([h1,h1])
     V = Utils.ModelBuilder.randomModel(M.vnC, seed=79, its=50)
     v = Utils.mkvc(V)