Remove dotenv dependency and update error message for Hugging Face token in SmolAgent initialization.

app.py

@@ -3,11 +3,8 @@ import gradio as gr
 import requests
 import inspect
 import pandas as pd
-from dotenv import load_dotenv
 from smolagents import CodeAgent, InferenceClientModel
 
-load_dotenv()
-
 # (Keep Constants as is)
 # --- Constants ---
 DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
@@ -19,7 +16,7 @@ class SmolAgent:
     def __init__(self, hf_token: str):
         print("Initializing SmolAgent...")
         if not hf_token:
-            raise ValueError("Hugging Face token not found. Please set HF_TOKEN environment variable.")
+            raise ValueError("Hugging Face token not found. Please set HF_TOKEN environment variable in HF Spaces settings.")
         
         # 3. Initialize the SmolLM model
         model = InferenceClientModel(

requirements.txt

@@ -1,6 +1,5 @@
 smolagents
 huggingface_hub
-python-dotenv
 gradio
 requests
 pandas