Grouped bar chart with altair and streamlit


i want to draw a grouped bar chart with altair and streamlit, but i don’t know how.

This is my dataframe:

 	Date	Revenue	Earnings
0	2021-06-30T00:00:00	2833000000	350000000
1	2021-03-31T00:00:00	2870000000	219000000
2	2020-12-31T00:00:00	2392000000	17000000
3	2020-09-30T00:00:00	2365000000	-20000000


it should look like this.

Thank you

Is it possible with plost?

It’s possible with Altair:

with plost it´s possible, but it seems not to work with columns.

                    bar='Quarter', height=400, width=100,
                    value=['Total Revenue (Mill.)', 'Net Income (Mill.)'],

Now i´ll try altair.