Update app.py

app.py

@@ -40,6 +40,8 @@ def greet(prompts, separator):
     if separator in prompts:
         multi_prompt = True
         prompts = prompts.split('separator')
+    else:
+        prompts = [prompts]
     model_outputs = model.generate(prompts, sampling_params)
     generations = []
     for output in model_outputs: