PEP8 style changes for transform.radon_transform and its tests

skimage/transform/tests/test_radon_transform.py

@@ -105,6 +105,7 @@ def test_reconstruct_with_wrong_angles():
     iradon(p, theta=[0, 1, 2])
     assert_raises(ValueError, iradon, p, theta=[0, 1, 2, 3])
 
+
 def test_radon_circle():
     a = np.ones((10, 10))
     assert_raises(ValueError, radon, a, circle=True)
@@ -131,6 +132,7 @@ def test_radon_circle():
     print(relative_error.max(), relative_error.mean())
     assert np.all(relative_error < 3e-3)
 
+
 def test_radon_iradon_circle():
     shape = (61, 79)
     # Synthetic random data, zero outside reconstruction circle