Update app.py

app.py

@@ -0,0 +1,36 @@
+import streamlit as st
+from langchain import HuggingFaceHub, PromptTemplate, LLMChain
+
+st.set_page_config(page_title="LangChain Streamlit Demo", page_icon=":robot:")
+st.title("LangChain Streamlit Demo")
+
+
+llm = HuggingFaceHub(
+    repo_id="tiiuae/falcon-7b-instruct",
+    model_kwargs={"temperature": 0.6, "max_new_tokens": 2000}
+)
+
+template = """
+You are an artificial intelligence assistant. The assistant gives helpful, detailed, and polite answers to the user's questions.
+
+{question}
+"""
+
+prompt = PromptTemplate(template=template, input_variables=["question"])
+llm_chain = LLMChain(prompt=prompt, llm=llm, verbose=True)
+
+
+
+def get_text():
+    st.sidebar.header("User Input")
+    input_text = st.sidebar.text_input("You: ",key="input")
+    return input_text
+
+
+user_input=get_text()
+submit=st.sidebar..button('Generate')
+
+if submit:
+    generated_ans = llm_chain.invoke({"question": user_input})
+    st.subheader("Answer: ")
+    st.write(generated_ans)