absl argv added

app.py

@@ -19,7 +19,7 @@ logger = logging.getLogger(__name__)
 
 
 flags.DEFINE_string('station_id', None, "Station_id")
-flags.DEFINE_string('file_name', None, "File where to save the history")
+flags.DEFINE_string('file', None, "File where to save the history")
 
 
 def init_logging(filename=None, level=None):
@@ -44,12 +44,11 @@ def stop_server(server: WSClient, io_loop: AbstractEventLoop):
 
 
 # noinspection PyShadowingNames
-def try_to_log(kr_packet: KrPacketV2,
-               log_name: Optional[str] = None) -> None:
+def try_to_log(kr_packet: KrPacketV2) -> None:
     """ try to save log into the file """
-    if log_name is not None:
+    if FLAGS.file is not None:
         try:
-            with open(log_name, "a") as f:
+            with open(FLAGS.file, "a") as f:
                 f.write(f"{kr_packet}\r\n")
         except IOError:
             logging.error("save to file error!", exc_info=sys.exc_info())
@@ -75,7 +74,7 @@ def handle_message(data: bytes) -> None:
 
 
 # noinspection PyShadowingNames
-def main(argv) -> None:
+def main(_argv) -> None:
     """ Main """
 
     logging.getLogger("geventwebsocket").level = logging.WARNING