Update app.py

app.py

@@ -9,12 +9,11 @@ import gradio as gr
 from typing import List, Tuple
 
 # -----------------------------
-# 1. Load OpenAI API key
+# 1. Load OpenAI API key from Hugging Face Secrets
 # -----------------------------
-# IMPORTANT: 
-# Do NOT hardcode API keys for Spaces.
-# Add OPENAI_API_KEY in Hugging Face → Settings → Secrets
 openai.api_key = os.getenv("OPENAI_API_KEY")
+if openai.api_key is None:
+    raise ValueError("❌ OPENAI_API_KEY not found. Please add it in Hugging Face Secrets.")
 
 # -----------------------------
 # 2. System prompt for chatbot
@@ -34,18 +33,12 @@ def reset() -> List[Tuple[str, str]]:
 # 4. Chatbot function
 # -----------------------------
 def interact_chatbot(user_input: str, history: List[Tuple[str, str]], temp: float) -> List[Tuple[str, str]]:
-    """
-    Maintains context: sends the conversation history + new user input to ChatGPT API
-    """
     messages = [{'role': 'system', 'content': system_prompt}]
-
     for u, c in history:
         messages.append({'role': 'user', 'content': u})
         messages.append({'role': 'assistant', 'content': c})
-
     messages.append({'role': 'user', 'content': user_input})
 
-    # Call the API
     try:
         response = openai.chat.completions.create(
             model="gpt-3.5-turbo",
@@ -57,7 +50,6 @@ def interact_chatbot(user_input: str, history: List[Tuple[str, str]], temp: floa
     except Exception as e:
         assistant_reply = f"⚠️ Error: {str(e)}"
 
-    # Update history
     history.append((user_input, assistant_reply))
     return history
 
@@ -70,10 +62,12 @@ with gr.Blocks(css="""
     h3 {color: #5a2d82;}
     .footer {text-align: center; color: #666; font-size: 14px; margin-top: 20px;}
 """) as demo:
+
     gr.Markdown("# ✨ Conversational Chatbot with ChatGPT API ✨")
     gr.Markdown("### Made with ❤️ by **Shruti Mandaokar**")
 
-    chatbot = gr.Chatbot(label="💬 Chatbot")
+    # Modern chatbot with role/content format
+    chatbot = gr.Chatbot(label="💬 Chatbot", type="messages")
     user_input = gr.Textbox(label="Your message", placeholder="Type a sentence...")
 
     with gr.Column():
@@ -98,4 +92,6 @@ with gr.Blocks(css="""
 # 6. Launch the app
 # -----------------------------
 if __name__ == "__main__":
-    demo.launch(share=True)
+    # Detect if running on Hugging Face Spaces
+    on_spaces = os.getenv("SYSTEM") == "spaces"
+    demo.launch(share=not on_spaces)