Suggested style fixes for data fixtures

data_for_test.py

@@ -55,21 +55,21 @@ class FluxDataSingle:
 
     def swap_array(self, arr, d):
         p = self.permutation(d)
-        arr[p] = arr[[1,2,3]]
+        arr[p] = arr[[1, 2, 3]]
         return arr
 
     def swap_array_rows(self, arr, d):
         p = self.permutation(d)
-        arr[p,:] = arr[[1,2,3],:]
+        arr[p, :] = arr[[1, 2, 3], :]
         return arr
 
     def swap_array_cols(self, arr, d):
         p = self.permutation(d)
-        arr[:,p] = arr[:,[1,2,3]]
+        arr[:, p] = arr[:, [1, 2, 3]]
         return arr
 
     def permutation(self, d):
-        return [(d-1+i)%3 + 1 for i in range(3)]
+        return [(d-1+i) % 3 + 1 for i in range(3)]
 
 # }}}