Update app.py

app.py

@@ -0,0 +1,27 @@
+import streamlit as st 
+
+from langchain.llms import OpenAI
+
+#App UI starts here
+st.set_page_config(page_title='LangChain Demo', page_icon=":robot:")
+st.header('LangChain Demo')
+
+#Get user input
+def get_text():
+    input_text = st.text_input("You: ", key="input")
+    return input_text
+
+#Generate response
+def generate_response(user_input):
+    llm = OpenAI(model_name="text-davinci-003", temperature=0)
+    response = llm(user_input)
+    return response
+
+user_input = get_text()
+
+submit = st.button("Generate")
+
+if submit:
+    st.subheader("Answer: ")
+    response = generate_response(user_input)
+    st.write(response)