st.dataframe does not support multiindex dataframe styler formatting.

I’m trying to apply a dictionary of formats via the pandas styler to a multiindex dataframe. But it throws and error.

You can see the error if you pip install yahooquery and streamlit run the below script

import streamlit as st

from yahooquery import Ticker

data = Ticker("ORSTED.CO").balance_sheet(frequency="annual")

st.header("Raw Data")
st.dataframe(data)

def get_default_format(data):
    format_dict = {}
    for column in data.columns:
        if data[column].dtype == "int64":
            format_dict[column] = "{0:,.0f}"
        elif data[column].dtype == "float64":
            format_dict[column] = "{0:,.2f}"
        else:
            format_dict[column] = "{0:}"
    return format_dict

st.header("Dataframe Index dropped and decimal symbol format applied")
data_reset_index = data.reset_index()
format_dict = get_default_format(data_reset_index)
st.dataframe(data_reset_index.style.format(format_dict))

st.header("Dataframe Index NOT dropped and decimal symbol format applied")
format_dict = get_default_format(data)
st.dataframe(data.style.format(format_dict))

and the error is

RuntimeError: Found unexpected row header "{'type': 'th', 'is_visible': True, 'value': 0, 'display_value': 0, 'id': 'level1_row0', 'class': 'row_heading level1 row0'}"
Traceback:
  File "c:\repos\private\awesomestreamlit\.venv\lib\site-packages\streamlit\ScriptRunner.py", line 324, in _run_script
    exec(code, module.__dict__)
  File "C:\repos\private\awesomestreamlit\scripts\issues\issue_dataframe.py", line 28, in <module>
    st.dataframe(data.style.format(format_dict))
  File "c:\repos\private\awesomestreamlit\.venv\lib\site-packages\streamlit\__init__.py", line 152, in wrapped_method
    return method.__get__(dg)(*args, **kwargs)
  File "c:\repos\private\awesomestreamlit\.venv\lib\site-packages\streamlit\DeltaGenerator.py", line 88, in wrapped_method
    return method(self, *args, **kwargs)
  File "c:\repos\private\awesomestreamlit\.venv\lib\site-packages\streamlit\DeltaGenerator.py", line 887, in dataframe
    set_data_frame, "dataframe", elementWidth=width, elementHeight=height
  File "c:\repos\private\awesomestreamlit\.venv\lib\site-packages\streamlit\DeltaGenerator.py", line 392, in _enqueue_new_element_delta
    rv = marshall_element(msg.delta.new_element)
  File "c:\repos\private\awesomestreamlit\.venv\lib\site-packages\streamlit\DeltaGenerator.py", line 884, in set_data_frame
    data_frame_proto.marshall_data_frame(data, delta.data_frame)
  File "c:\repos\private\awesomestreamlit\.venv\lib\site-packages\streamlit\elements\data_frame_proto.py", line 55, in marshall_data_frame
    _marshall_styles(proto_df.style, df, styler)
  File "c:\repos\private\awesomestreamlit\.venv\lib\site-packages\streamlit\elements\data_frame_proto.py", line 76, in _marshall_styles
    display_values = _get_custom_display_values(df, translated_style)
  File "c:\repos\private\awesomestreamlit\.venv\lib\site-packages\streamlit\elements\data_frame_proto.py", line 188, in _get_custom_display_values
    raise RuntimeError('Found unexpected row header "%s"' % cell)

[Jesse-jApps]

Is there any progress concerning this so far?

[kantuni]

This project has been stalled for a while, but I’ve resumed working on it recently.