Add custom color to marker color for each year in a px.bar graph

📊 Plotly Python
2

Typical that having postwed a question an answer appears in another post from months ago

I just needed to add a color_discrete_mapp to my px.bar and it allows me to assign colors to my columns.

Working graphing code is as follows

fig = px.bar(df_merge[action_mask],
            color_discrete_map={
                '2019' : '#071633',
                '2020' : '#0DEFFF'
            }
            )

# Change the bar mode
fig.update_layout(barmode='group',
                  title='<b>Number of actions by unit<b>',
                  xaxis_categoryorder = 'category ascending',
                  height = 800,
                  plot_bgcolor='rgba(0,0,0,0)',
                  showlegend=True
                 )

fig.update_xaxes(tickangle=45,
                 title_text='<b>Unit<b>',
                 showline=True,
                 linewidth=1,
                 linecolor='#071633'
                )

fig.update_yaxes(title_text='<b>Count<b>',
                 showline=True,
                 linewidth=0.25,
                 linecolor='#071633')

fig.show()
``