การอัปเดตชื่อกราฟ

from dash import Dash, dcc, html, Input, Output, callback
import plotly.express as px
import pandas as pd
from datetime import datetime, date
ecom_sales = pd.read_csv('/usr/local/share/datasets/ecom_sales.csv')
logo_link = 'https://assets.datacamp.com/production/repositories/5893/datasets/fdbe0accd2581a0c505dab4b29ebb66cf72a1803/e-comlogo.png'

def make_break(num_breaks):
    br_list = [html.Br()] * num_breaks
    return br_list

def add_logo():
    corp_logo = html.Img(
        src=logo_link, 
        style={'width':'75px','margin':'20px 20px 5px 5px','border':'1px dashed lightblue','display':'inline-block'})
    return corp_logo

def style_c():
    layout_style={'display':'inline-block','margin':'0 auto','padding':'20px'}
    return layout_style
  
app = Dash()

app.layout = [
  add_logo(),
  *make_break(2),
  html.H1('Sales Dashboard'),
  *make_break(3),         
  html.Div([
    html.H2('Controls', style=style_c()),
    html.H3('Customize plot title'),
    *make_break(2),
    # Add a text input
    dcc.____(id='add_user_name', type='____', 
      placeholder='Enter your name',
      # Ensure input is triggered with 'Enter'
      ____=____,
      # Ensure the plot can load without a selection
      ____=____,
      style={'width':'200px', 'height':'30px'})],
    style={'width':'350px', 'height':'350px', 'vertical-align':'top', 'border':'1px solid black',
           'display':'inline-block', 'margin':'0px 80px'}),
  html.Div([
    dcc.Graph(id='sales_plot'),
    html.H2('Sales Quantity by Country', style={ 'border':'2px solid black', 'width':'400px', 'margin':'0 auto'})],
    style={'width':'500px','display':'inline-block'})       
]

@callback(
    Output(component_id='sales_plot', component_property='figure'),
    Input(component_id='add_user_name', component_property='value')
)
def update_plot(entered_name):
    title_value = 'No Name Entered'
    sales = ecom_sales.copy(deep=True)
    if entered_name:
      title_value = entered_name
    fig = px.scatter(data_frame=sales, 
                    y='OrderValue', x='Quantity', color='Country',title=f'Plot generated for: {title_value}')
    return fig

if __name__ == '__main__':
    app.run(debug=True)