Update app.py

app.py

@@ -19,7 +19,7 @@ agents =[
     "PYTHON_CODE_DEV"
 ]
 def generate(
-        prompt, history, agent_name=agents[0], sys_prompt, temperature=0.9, max_new_tokens=256, top_p=0.95, repetition_penalty=1.0,
+        prompt, history, agent_name=agents[0], sys_prompt="", temperature=0.9, max_new_tokens=256, top_p=0.95, repetition_penalty=1.0,
 ):
     agent=prompts.WEB_DEV
     if agent_name == "WEB_DEV":