Update app.py

app.py

@@ -1,7 +1,7 @@
 import gradio as gr
 
 def greet(input):
-    return input * 9/5 + 3
+    return (float)input * 9/5 + 3
 
-demo = gr.Interface(fn=greet, inputs=float, outputs=float)
+demo = gr.Interface(fn=greet, inputs='text', outputs='text')
 demo.launch()