Update app.py

app.py

@@ -7,7 +7,7 @@ from huggingface_hub import (upload_file,HfApi)
 token_self = os.environ['HF_TOKEN']
 api = HfApi(token=token_self)
 
-rec_list = [""]
+rec_list = []
 pa=os.environ['PASS']
 
 main_chain='https://huggingface.co/datasets/Omnibus/chat-at/raw/main/chat/'
@@ -17,6 +17,7 @@ def update_rec_list():
     repo = main_chain.split('datasets/',1)[1].split('/raw',1)[0].split('/',1)[0]
     name = main_chain.split('datasets/',1)[1].split('/raw',1)[0].split('/',1)[1]
     f_ist = (api.list_repo_files(repo_id=f'{repo}/{name}', repo_type="dataset"))
+    rec_list.clear()
     rec_list =[]
     for i,ea in enumerate(f_ist):
         if "chat/" in ea: