Update circular_index to index_with_360

xcdat/axis.py

@@ -338,17 +338,17 @@ def _swap_lon_axis(coords: xr.DataArray, to: Tuple[float, float]) -> xr.DataArra
         # value of 0 (360 % 360 is 0) back to 360. This case usually happens
         # if the coordinate are already on the (0, 360) axis orientation.
         # Example with 360 coords: [60, 150, 0] -> [60, 150, 360]
-        circular_index = np.where(coords == 360)
+        index_with_360 = np.where(coords == 360)
 
-        if len(circular_index) > 0:
+        if len(index_with_360) > 0:
             # Must load lazy, multidimensional Dask arrays into into eager,
             # in-memory NumPy arrays before manipulating its values. Otherwise,
             # it raises `NotImplementedError xarray can't set arrays with
             # multiple array indices to dask yet`.
             if isinstance(new_coords.data, Array) and new_coords.ndim > 1:
                 new_coords.load()
 
-            new_coords[circular_index] = 360
+            new_coords[index_with_360] = 360
     else:
         raise ValueError(
             "Currently, only (-180, 180) and (0, 360) are supported longitude axis "