Add CLI flag --delete

imgrate.py

@@ -49,9 +49,12 @@ class imgrate:
 
 
 if __name__ == '__main__':
+    from os import remove
+
     def parse_arguments():
         ap = ArgumentParser()
         ap.add_argument('images', type=str, nargs='+', help='')
+        ap.add_argument('-d', '--delete', action='store_true', help='Delete all but the best quality image.')
         return ap.parse_args()
 
 
@@ -63,4 +66,8 @@ if __name__ == '__main__':
             maxmark = '*' if rating == maximum and len(ratings) > 1 else ' '
             print('{}imgrate("{}") = {}'.format(maxmark, rating, ratings[rating]))
 
+        if args.delete:
+            [remove(image) for image in ratings if image != maximum]
+
+
     run(parse_arguments())