Update app.py

app.py

@@ -8,17 +8,18 @@ client = InferenceClient("mistralai/Mixtral-8x7B-Instruct-v0.1")
 
 
 def format_prompt(message, history):
-  prompt = "<s>"
-  for user_prompt, bot_response in history:
-    prompt += f"[INST] {user_prompt} [/INST]"
-    prompt += f" {bot_response}</s> "
-  prompt += f"[INST] {message} [/INST]"
-  return prompt
+    prompt = "<s>"
+    if history:
+        for user_prompt, bot_response in history:
+            prompt += f"[INST] {user_prompt} [/INST]"
+            prompt += f" {bot_response}</s> "
+    prompt += f"[INST] {message} [/INST]"
+    return prompt
 
 
 def chat_inf(system_prompt,prompt,history):
     if not history:
-        history = [("","")]
+        history = []
         
     seed = random.randint(1,1111111111111111)
     generate_kwargs = dict(