diff --git a/python3.8/websocket.py b/python3.8/websocket.py
deleted file mode 100644
index 5be2cd1..0000000
--- a/python3.8/websocket.py
+++ /dev/null
@@ -1,94 +0,0 @@
-#!/usr/bin/python3
-# *_* coding= utf-8 *_*
-
-import asyncio
-import websockets
-import ssl
-import certifi
-import json
-import logging
-import time
-import hashlib
-
-WS_URL = "wss://socket.coinex.com/"
-access_id = "XXXXX"
-secret_key = "XXXXX"
-
-ssl_context = ssl.create_default_context()
-ssl_context.load_verify_locations(certifi.where())
-
-
-async def ping(conn):
-    param = {
-        "id": 1,
-        "method": "server.ping",
-        "params": []
-    }
-    while True:
-        await conn.send(json.dumps(param))
-        await asyncio.sleep(3)
-
-
-async def auth(conn):
-    current_time = int(time.time()*1000)
-    sign_str = f"access_id={access_id}&tonce={current_time}&secret_key={secret_key}"
-    md5 = hashlib.md5(sign_str.encode())
-    param = {
-        "id": 1,
-        "method": "server.sign",
-        "params": [access_id, md5.hexdigest().upper(), current_time]
-    }
-    await conn.send(json.dumps(param))   
-    res = await conn.recv()
-    print(json.loads(res)) 
-
-
-async def subscribe_depth(conn):
-    param = {
-        "id": 1,
-        "method": "depth.subscribe",
-        "params": ['BTCUSDT', 10, "1"]        
-    }
-    await conn.send(json.dumps(param))
-    res = await conn.recv()
-    print(json.loads(res)) 
-
-
-async def subscribe_asset(conn):
-    param = {
-        "id": 1,
-        "method": "asset.subscribe",
-        "params": ['USDT', 'CET']        
-    }
-    await conn.send(json.dumps(param))
-    res = await conn.recv()
-    print(json.loads(res)) 
-
-
-async def main():
-    # 非标准websocket服务需要关闭客户端的自动ping，设置ping_interval=None
-    conn = await websockets.connect(uri=WS_URL, compression=None, ping_interval=None)
-    # auth
-    await auth(conn)
-    # subscribe depth
-    await subscribe_depth(conn)
-    # subscribe asset
-    await subscribe_asset(conn)
-
-    # note: important to keepalive 
-    asyncio.create_task(ping(conn))
-
-    # loop to process update data
-    while True:
-        res = await conn.recv()
-        res = json.loads(res)
-        print(res)
-
-
-if __name__ == "__main__":
-    # logging.getLogger("asyncio").setLevel(logging.DEBUG)
-    loop = asyncio.get_event_loop()
-    asyncio.run(main())
-    # loop.set_debug(enabled=True)
-    print("websocket demo")
-    
\ No newline at end of file