Create app.py

app.py

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+### Q&A Chatbot ###
+
+import os
+import streamlit as st
+from langchain_openai import ChatOpenAI
+from langchain.prompts.chat import ChatPromptTemplate
+
+
+## Load Anthropic model and get response
+
+def get_openai_response(question):
+    system_template = "You are a helpful coder assistant. When the user asks a question, your task is to write simple Python codes."
+    user_template = "{question}"
+    chat_prompt = ChatPromptTemplate.from_messages([
+        ("system", system_template),
+        ("human", user_template)
+    ])
+    
+    chat_llm = ChatOpenAI(temperature=0.5)
+    
+    chain = chat_prompt | chat_llm
+    
+    return chain.invoke(question).content
+    
+    
+## Initialize Streamlit app
+
+st.set_page_config(page_title="Simple Langchain App")
+st.header("Coder Q&A Demo")
+
+input = st.text_input("Input: ", key=input)
+response = get_openai_response(input)
+
+submit = st.button("Ask your question...")
+if submit:
+    st.subheader("The response is:")
+    st.write(response)