BUG: AttributeError: 'LinearColormap' object has no attribute 'default_css'

[connortann]

I encountered this error with st_folium(map), with version 0.20.1.

AttributeError: 'LinearColormap' object has no attribute 'default_css'

Code example

import geopandas as gdp
from streamlit_folium import st_folium

gdf = gpd.GeoDataFrame(...)
m = gdf.explore("col")
st_folium(m, use_container_width=True)

Full traceback

File ".../lib/python3.11/site-packages/streamlit/runtime/scriptrunner/exec_code.py", line 88, in exec_func_with_error_handling
    result = func()
             ^^^^^^
File ".../lib/python3.11/site-packages/streamlit/runtime/scriptrunner/script_runner.py", line 590, in code_to_exec
    exec(code, module.__dict__)
File "/foo/app.py", line 32, in <module>
    page.run()
File ".../lib/python3.11/site-packages/streamlit/navigation/page.py", line 291, in run
    exec(code, module.__dict__)
File "/foo/bar.py", line 77, in <module>
    main(st.session_state.df)
File "/foo/bar.py", line 12, in main
    show_map(df)
File "/foo/bar.py", line 74, in show_map
    st_folium(m, use_container_width=True)
File ".../lib/python3.11/site-packages/streamlit_folium/__init__.py", line 393, in st_folium
    css_links.extend([href for _, href in elem.default_css])
                                          ^^^^^^^^^^^^^^^^

Discussion

Possibly related:

• AttributeError: 'StepColormap' object has no attribute 'default_css' #199
• GeoJSON Popup is broken #200
• Fix error where default_css was missing #201

[randyzwitch]

Please upgrade your streamlit-folium version and try again.

[connortann]

Ah, yes it is fixed on the latest version. Apologies, I thought I was already on the latest but I was mistaken!