i guess pylint doesnt like elif

pymatgen/core/surface.py

@@ -313,19 +313,15 @@ def is_symmetric(self, symprec=0.1):
         sg = SpacegroupAnalyzer(self, symprec=symprec)
         symmops = sg.get_point_group_operations()
 
-        if sg.is_laue():
-            # check for inversion symmetry
-            return True
-        elif any([np.alltrue(op.rotation_matrix[2] == np.array([0,0,-1])) for op in symmops]):
-            # Because the two surfaces of our slabs are always parallel to the (hkl) plane,
+        if sg.is_laue() or any([op.translation_vector[2] != 0 for op in symmops]) or \
+                any([np.alltrue(op.rotation_matrix[2] == np.array([0,0,-1])) for op in symmops]):
+            # Check for inversion symmetry. Or if sites from surface (a) can be translated
+            # to surface (b) along the [hkl]-axis, surfaces are symmetric. Or because the
+            # two surfaces of our slabs are always parallel to the (hkl) plane,
             # any operation where theres an (hkl) mirror plane has surface symmetry
-            return True
-        elif any([op.translation_vector[2] != 0 for op in symmops]):
-            # if sites from surface (a) can be translated to
-            # surface (b) along the [hkl]-axis, surfaces are symmetric
-            return True
-
-        return False
+                return True
+        else:
+            return False
 
     def get_sorted_structure(self, key=None, reverse=False):
         """