Update app.py

app.py

@@ -4,13 +4,12 @@ import inspect
 from gradio import routes
 from typing import List, Type
 
-import requests, os, re, asyncio, queue
+import requests, os, re, asyncio, json
 import math
 import time
 import datetime
-import requests, json
-
-from BlockChain_base import BlockChain
+import hashlib
+import BlockChain
 
 loop = asyncio.get_event_loop()
 # Monkey patch