Update app.py

app.py

@@ -31,6 +31,12 @@ model_name = "model-q4_K.gguf"
 final_model_path = os.path.join(directory, model_name)
 
 print("Downloading all files...")
+rm_files = [os.path.join(directory, f) for f in os.listdir(directory)]
+for f in rm_files:
+   if os.path.isfile(f):
+       os.remove(f)
+   else:
+       shutil.rmtree(f)
 if not os.path.exists(final_model_path):
     with open(final_model_path, "wb") as f:
         http_get(model_url, f)