create filename and check if it exists.

get_ee_from_region.py

@@ -107,6 +107,15 @@ parser.add_argument(
     action='store_true',
     help="verbose mode, log output goes to stderr")
 
+parser.add_argument(
+    "-O",
+    "--override-existing",
+    dest='override-existing',
+    default=True,
+    required=False,
+    action='store_true',
+    help="verbose mode, log output goes to stderr")
+
 parser.add_argument(
     "-c",
     "--country",
@@ -162,9 +171,19 @@ logging.debug("Region is [{}]".format(args.region))
 iso_code = resolver.resolve(args.country)
 logging.debug("iso_code for [{}] is [{}]".format(args.country, iso_code))
 
+target_region_name="{}{}{}".format(args.country,
+                                   "" if args.region == 'None' else "-",
+                                   "" if args.region == 'None' else args.region)
 bbox=get_mainland_bbox(args.country, args.region)
-logging.debug("BBOX is [{}]".format(bbox))
+logging.debug("BBOX for [{}] as tuple is {}".format(target_region_name, bbox))
 
 #ee.Geometry.BBox(w,s,e,n)
 b_list = list(bbox)
-logging.debug("BBOX as list is {}".format(b_list))
+logging.debug("BBOX for [{}] as list is {}".format(target_region_name, b_list))
+
+target_filename = target_region_name + ".png"
+
+if os.path.exists(target_filename):
+    logging.debug("The file [{}] already exists.".format(target_filename))
+else:
+    logging.debug("The file [{}] does not exist.".format(target_filename))