Update app.py

app.py

@@ -12,6 +12,9 @@ client = InferenceClient(
     token=HF_TOKEN
 )
 
+# Initialize conversation history as global variable
+conversation_history = []
+
 def query_leolm(messages, max_tokens=200, temperature=1.0, top_p=0.9):
     """Query LeoLM-13B model via Hugging Face InferenceClient"""
     try:
@@ -54,6 +57,8 @@ def query_leolm(messages, max_tokens=200, temperature=1.0, top_p=0.9):
             raise Exception(f"Both methods failed - Chat: {str(chat_error)}, Text: {str(text_error)}")
 
 def enhanced_chat_response(user_input, max_tokens, temperature, top_p):
+    global conversation_history  # Declare global variable
+    
     if not user_input.strip():
         return "", "*Bitte gib eine Nachricht ein.*", ""