Pep8 changes

test/test_energies/test_map.py

@@ -202,10 +202,10 @@ class Curvature_Tests(unittest.TestCase):
         assert_allclose(ift.dobj.to_global_data(a.val),
                         ift.dobj.to_global_data(b.val), rtol=tol, atol=tol)
 
-
     @expand(product([ift.RGSpace(64, distances=.789),
                      ift.RGSpace([32, 32], distances=.789)],
-                    [ift.library.Linear],  # Only linear case due to approximation of Hessian in the case of nontrivial nonlinearities.
+                    # Only linear case due to approximation of Hessian in the case of nontrivial nonlinearities.
+                    [ift.library.Linear],
                     [4, 78, 23]))
     def testNonlinearMapCurvature(self, space, nonlinearity, seed):
         np.random.seed(seed)

test/test_energies/test_power.py

@@ -63,7 +63,8 @@ class Energy_Tests(unittest.TestCase):
             tol_abs_gradnorm=1e-5)
         inverter = ift.ConjugateGradient(IC)
 
-        S = ift.create_power_operator(hspace, power_spectrum=lambda k: 1./(1+k**2))
+        S = ift.create_power_operator(
+            hspace, power_spectrum=lambda k: 1. / (1 + k**2))
 
         D = ift.library.WienerFilterEnergy(position=s, d=d, R=R, N=N, S=S,
                                            inverter=inverter).curvature