Streamlit spinner is not working

Hi, thanks for using Streamlit!

The reason this happens is that the thread is blocking the update and the spinner will not work I think. Could you try to do the following in between blocking work?

import asyncio
await asyncio.sleep(0.1)

and see if that helps? (import on top of course)

Hi ​@Anders Hafreager,

Do you mean something like this- 

with st.spinner("loading...."):
    await asyncio.sleep(0.5)
    res = long_running_function()
    st.write(res)

I tried this code - 

import streamlit as st
import asyncio
import time
from cognite.client import CogniteClient
st.title("An example app in CDF")
client = CogniteClient()

@st.cache_data
def get_assets():
  assets = client.assets.list(limit=None).to_pandas()
  assets = assets.fillna(0)
  return assets

with st.spinner("loading...."):
    await asyncio.sleep(0.5)
    time.sleep(2)
    res = get_assets()
    st.write(res)

and it worked for me.
 

 I tried on my local machine without the `await asyncio.sleep(0.01)` I can see the spinner. Could you please help me to understand why samethings doesn’t work after integrate in CDF streamlit app development space?
 

Thanks!