Issue with st.pydeck_chart not displaying description

Using Streamlit
,
1

Hello Streamlit community!

I’m experiencing an issue with st.pydeck_chart where the description specified in the pdk.Deck object is not being displayed. I’m hoping someone can help me understand what’s going on.

Environment

  • Streamlit version: 1.39.0 (latest)
  • PyDeck version: 0.9.1 (latest)
  • Running the app locally

Problem Description

When I create a pdk.Deck object with a description parameter and pass it to st.pydeck_chart, the description doesn’t appear in the rendered chart. This is happening when I run my Streamlit app locally.

Sample Code

Here’s a minimal example that demonstrates the issue:

import streamlit as st
import pydeck as pdk

# Create a simple deck
deck = pdk.Deck(
    map_style=None,
    initial_view_state=pdk.ViewState(
        latitude=37.76,
        longitude=-122.4,
        zoom=11,
        pitch=50,
    ),
    layers=[],
    description="This description should appear, but it doesn't."
)

# Display the deck
st.pydeck_chart(deck)
# deck.show() # this version shows the description text on top left.

Questions

  1. Is this issue already known in the community?
  2. Are there any workarounds or solutions available?

I appreciate any insights or help you can provide. If you need any additional information about my local setup, please let me know. Thank you in advance!