Hello, I am trying to get a simple streamlit app working. I am running VS Code on windows 11. I am running the code in a virtual python environment that has python 3.11. I am using 1.27.2 of Streamlit. There are no errors in the command line from where I launched the app. I have tried different browsers, incognito mode, rebooting, and switching server ports - no luck. The code is from an online course and a couple of other windows users have the same issue.
from typing import Set
from backend.core import run_llm
import streamlit as st
from streamlit_chat import message
st.header("LangChain Udemy Course- Documentation Helper Bot")
prompt = st.text_input("Prompt", placeholder="Enter your prompt here..")
if "user_prompt_history" not in st.session_state:
st.session_state["user_prompt_history"] = []
if "chat_answers_history" not in st.session_state:
st.session_state["chat_answers_history"] = []
def create_sources_string(source_urls: Set[str]) -> str:
if not source_urls:
return ""
sources_list = list(source_urls)
sources_list.sort()
sources_string = "sources:\n"
for i, source in enumerate(sources_list):
sources_string += f"{i+1}. {source}\n"
return sources_string
if prompt:
with st.spinner("Generating response.."):
generated_response = run_llm(query=prompt)
sources = set(
[doc.metadata["source"] for doc in generated_response["source_documents"]]
)
formatted_response = (
f"{generated_response['result']} \n\n {create_sources_string(sources)}"
)
st.session_state["user_prompt_history"].append(prompt)
st.session_state["chat_answers_history"].append(formatted_response)
if st.session_state["chat_answers_history"]:
for generated_response, user_query in zip(
st.session_state["chat_answers_history"],
st.session_state["user_prompt_history"],
):
message(user_query, is_user=True)
message(generated_response)
