Add a thousand separator to my numeric columns

Custom Components streamlit-aggrid
1

I’d like to have add a thousand separator (preferably a blank space) to my numeric values in an Ag Grid table, in my Streamlit application.

The function I use to build it is this one :

def render_aggrid(df: pd.DataFrame, column_list: list[str]) -> dict:
    # Build grid options
    gb = GridOptionsBuilder.from_dataframe(df)
    gb.configure_default_column(filter=True)  # Enable filtering for all columns

    # Set specific widths for individual columns
    for col in column_list:
        gb.configure_column(col)
    grid_options = gb.build()
    grid_options["suppressSizeToFit"] = True

    # Display with AgGrid
    grid_response = AgGrid(
        df,
        gridOptions=grid_options,
        enable_enterprise_modules=True,
        fit_columns_on_grid_load=True,
    )
    return grid_response

I tried adding a valueFormatter to my numeric columns (valueFormatter="params.value.toLocaleString('fr-FR')" ).
I see that this line print(f"{col_def['field']}: {col_def.get('valueFormatter')}") is telling me that the valueFormatter is as expected, but I don’t see any thousand separator in my Ag Grid table.

Am I missing something ?