Hello demo from NLP course

app.py

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+#                                                                                                                 
+# gradio demo                                                                                                     
+#                                                                                                                 
+import gradio as gr
+
+def greet(name):
+    return "Hello " + name
+
+demo = gr.Interface(fn=greet, inputs="text", outputs="text")
+
+demo.launch()