bar.py

# Bar chart
def plot_data(data):
    
    data['Count'] = 1
    plot_data = data[['amount','currency','Count']]
    plot_data = plot_data.groupby(["currency"],as_index=False).Count.sum()
    
    with chart_output:
        print("Total data: ", len(data))
        plot_bar(plot_data, x="currency", y="Count", color="currency")

# Bar Chart helper
def plot_bar(data, x, y, color):

    fig = px.bar(data, x, y, color, orientation='v',width=1000)
    
    fig.update_layout(
    plot_bgcolor='white', # clean plot
    )
    
    return fig.show()