Update app.py

app.py

@@ -4,8 +4,14 @@ import requests
 from transformers import pipeline
 import wikipediaapi
 
-# Load historical figures and tutor topics from Wikipedia dynamically
-wiki_wiki = wikipediaapi.Wikipedia("en")
+# Custom User-Agent to avoid API blocking
+USER_AGENT = "HistoricalChatbot/1.0 (Contact: [email protected])"
+
+# Load Wikipedia API with custom headers
+wiki_wiki = wikipediaapi.Wikipedia(
+    "en",
+    headers={"User-Agent": USER_AGENT}
+)
 
 # Load local AI model (Mistral-7B or Llama-2)
 chat_model = pipeline("text-generation", model="mistralai/Mistral-7B-Instruct-v0.1")
@@ -53,4 +59,4 @@ st.sidebar.subheader("Deployment Instructions")
 st.sidebar.markdown("1. Ensure `transformers` and `wikipedia-api` libraries are installed.")
 st.sidebar.markdown("2. Rename `chatbot.py` to `app.py` for Hugging Face Spaces.")
 st.sidebar.markdown("3. Run `streamlit run app.py` locally.")
-st.sidebar.markdown("4. Deploy on [Hugging Face Spaces](https://huggingface.co/spaces) or Replit.")
+st.sidebar.markdown("4. Deploy on [Hugging Face Spaces](https://huggingface.co/spaces) or Replit.")