update key for hf token

app.py

@@ -137,6 +137,12 @@ def main():
 
         def save_results(answers):
             api = HfApi()
+            api_token = os.getenv("HUGGINGFACE_TOKEN")
+            if not api_token:
+                raise ValueError("Hugging Face API token not found. Please set the HF_API_TOKEN environment variable.")
+            
+            api.set_access_token(api_token)
+            
             json_file_results = config['results']['exp1_dir'] # 'exp1' 
             JSON_DATASET_DIR = Path("json_dataset")
             JSON_DATASET_DIR.mkdir(parents=True, exist_ok=True)
@@ -163,7 +169,7 @@ def main():
                     }, f)
                     f.write("\n")
             scheduler.push_to_hub()
-            
+   
  
         def add_answer(dropdown1,dropdown2,dropdown3,dropdown4, answers):
             rank = [dropdown1,dropdown2,dropdown3,dropdown4]