Print more informtion, implement increasing sleep on failure

Signed-off-by: Abdulkadir Furkan Şanlı <me@abdulocra.cy>

lb_import.py

@@ -47,19 +47,24 @@ def main():
     client = connect_client(sys.argv[1])
     with open(sys.argv[2], 'r') as read_file:
         exported = json.load(read_file)
-    print("Opened file, starting import...")
+    print("Opened file with {} listens, starting import...".format(len(exported)))
+    imported = 0
     for raw_listen in exported:
         listen = parse_listen(raw_listen)
         for x in range(0, 5):
             try:
                 client.submit_single_listen(listen)
+                imported = imported + 1
+                print("Imported {} listens.".format(imported), end='\r')
                 submit_error = None
             except BaseException:
                 submit_error = True
 
             if submit_error:
-                print("Error occurred, retrying in 5 seconds...")
-                sleep(5)
+                sleep_time = x * 5
+                print(
+                    "\nError occurred, retrying in {} seconds...".format(sleep_time))
+                sleep(sleep_time)
             else:
                 break