diff --git a/tests/base/test_problem.py b/tests/base/test_problem.py
index 6764b460..ffbb5b29 100644
--- a/tests/base/test_problem.py
+++ b/tests/base/test_problem.py
@@ -5,12 +5,12 @@ from SimPEG import *
 class TestTimeProblem(unittest.TestCase):
 
     def setUp(self):
-        mesh = Mesh.TensorMesh([10,10])
+        mesh = Mesh.TensorMesh([10, 10])
         self.prob = Problem.BaseTimeProblem(mesh)
 
     def test_timeProblem_setTimeSteps(self):
         self.prob.timeSteps = [(1e-6, 3), 1e-5, (1e-4, 2)]
-        trueTS = np.r_[1e-6,1e-6,1e-6,1e-5,1e-4,1e-4]
+        trueTS = np.r_[1e-6, 1e-6, 1e-6, 1e-5, 1e-4, 1e-4]
         self.assertTrue(np.all(trueTS == self.prob.timeSteps))
 
         self.prob.timeSteps = trueTS
@@ -18,7 +18,7 @@ class TestTimeProblem(unittest.TestCase):
 
         self.assertTrue(self.prob.nT == 6)
 
-        self.assertTrue(np.all(self.prob.times == np.r_[0,trueTS].cumsum()))
+        self.assertTrue(np.all(self.prob.times == np.r_[0, trueTS].cumsum()))
 
 
 if __name__ == '__main__':
diff --git a/tests/base/test_regularization.py b/tests/base/test_regularization.py
index 6dddfb74..7c91e36d 100644
--- a/tests/base/test_regularization.py
+++ b/tests/base/test_regularization.py
@@ -8,6 +8,7 @@ TOL = 1e-20
 testReg = True
 testRegMesh = True
 
+
 class RegularizationTests(unittest.TestCase):
 
     def setUp(self):
@@ -16,41 +17,47 @@ class RegularizationTests(unittest.TestCase):
         mesh1 = Mesh.TensorMesh([hx])
         mesh2 = Mesh.TensorMesh([hx, hy])
         mesh3 = Mesh.TensorMesh([hx, hy, hz])
-        self.meshlist = [mesh1,mesh2, mesh3]
+        self.meshlist = [mesh1, mesh2, mesh3]
 
     if testReg:
         def test_regularization(self):
             for R in dir(Regularization):
                 r = getattr(Regularization, R)
-                if not inspect.isclass(r): continue
+                if not inspect.isclass(r):
+                    continue
                 if not issubclass(r, Regularization.BaseRegularization):
                     continue
 
                 for i, mesh in enumerate(self.meshlist):
 
-                    print 'Testing %iD'%mesh.dim
+                    print 'Testing %iD' % mesh.dim
 
                     mapping = r.mapPair(mesh)
                     reg = r(mesh, mapping=mapping)
                     m = np.random.rand(mapping.nP)
                     reg.mref = np.ones_like(m)*np.mean(m)
 
-                    print 'Check: phi_m (mref) = %f' %reg.eval(reg.mref)
+                    print 'Check: phi_m (mref) = %f' % reg.eval(reg.mref)
                     passed = reg.eval(reg.mref) < TOL
                     self.assertTrue(passed)
 
                     print 'Check:', R
-                    passed = Tests.checkDerivative(lambda m : [reg.eval(m), reg.evalDeriv(m)], m, plotIt=False)
+                    passed = Tests.checkDerivative(lambda m: [reg.eval(m),
+                                                   reg.evalDeriv(m)], m,
+                                                   plotIt=False)
                     self.assertTrue(passed)
 
                     print 'Check 2 Deriv:', R
-                    passed = Tests.checkDerivative(lambda m : [reg.evalDeriv(m), reg.eval2Deriv(m)], m, plotIt=False)
+                    passed = Tests.checkDerivative(lambda m: [reg.evalDeriv(m),
+                                                   reg.eval2Deriv(m)], m,
+                                                   plotIt=False)
                     self.assertTrue(passed)
 
         def test_regularization_ActiveCells(self):
             for R in dir(Regularization):
                 r = getattr(Regularization, R)
-                if not inspect.isclass(r): continue
+                if not inspect.isclass(r):
+                    continue
                 if not issubclass(r, Regularization.BaseRegularization):
                     continue
 
diff --git a/tests/mesh/test_operators.py b/tests/mesh/test_operators.py
index 3b99345c..182b215f 100644
--- a/tests/mesh/test_operators.py
+++ b/tests/mesh/test_operators.py
@@ -3,7 +3,7 @@ import unittest
 from SimPEG.Tests import OrderTest
 import matplotlib.pyplot as plt
 
-#TODO: 'randomTensorMesh'
+# TODO: 'randomTensorMesh'
 MESHTYPES = ['uniformTensorMesh', 'uniformCurv', 'rotateCurv']
 call2 = lambda fun, xyz: fun(xyz[:, 0], xyz[:, 1])
 call3 = lambda fun, xyz: fun(xyz[:, 0], xyz[:, 1], xyz[:, 2])