Polish

Analysis/plot_eddy_contours.py

@@ -206,7 +206,7 @@ def open_shpt(shp_coll_dir):
         try:
             readers[layer] = shapefile.Reader(path.join(shp_coll_dir, layer))
         except shapefile.ShapefileException:
-            print(f"Shapefile {layer} not found.")
+            print(f"Shapefile {layer} not found in {shp_coll_dir}.")
 
     k1 = readers["extremum"].record(0).date_index
     fname = path.join(shp_coll_dir, "ishape_last.txt")
@@ -232,7 +232,7 @@ if __name__ == "__main__":
                         action = "store_true")
     parser.add_argument("-s", "--scale", default = 20, type = float,
                         help = "scale of arrows for the velocity field")
-    parser.add_argument("-k", type = int, help = "date index")
+    parser.add_argument("-k", type = int, help = "date, as days since 1950-1-1")
     parser.add_argument("-g", "--grid", help = "plot grid",
                         action = "store_true")
     parser.add_argument("-w", "--window", help = "choose a limited plot window",