Update app.py

app.py

@@ -2,7 +2,6 @@ import os
 import gradio as gr
 from groq import Groq
 
-# ✅ Get API key from Hugging Face Secrets
 client = Groq(api_key=os.environ["Groq_api"])
 
 def chatbot(user_input, history):
@@ -11,19 +10,22 @@ def chatbot(user_input, history):
 
     messages = []
 
-    # Add previous chat history
-    for human, bot in history:
-        messages.append({"role": "user", "content": human})
-        messages.append({"role": "assistant", "content": bot})
+    # ✅ FIX: Ensure proper unpacking
+    for chat in history:
+        if len(chat) == 2:
+            human, bot = chat
+            messages.append({"role": "user", "content": str(human)})
+            messages.append({"role": "assistant", "content": str(bot)})
 
-    # Add current input
-    messages.append({"role": "user", "content": user_input})
+    # current message
+    messages.append({"role": "user", "content": str(user_input)})
 
     try:
         response = client.chat.completions.create(
-            model="llama3-8b-8192",  # ✅ safer + recommended
+            model="llama3-8b-8192",
             messages=messages
         )
+
         bot_reply = response.choices[0].message.content
 
     except Exception as e: