在bokeh barchart点击上更新数据表

from bokeh.plotting import figure, show
from bokeh.models import ColumnDataSource, DataTable, StringFormatter, StringEditor, NumberFormatter, NumberEditor, SelectEditor
from bokeh.layouts import column
from bokeh.io import curdoc

# 创建数据
data = {'x': ['A', 'B', 'C'], 'y': [10, 20, 30]}
source = ColumnDataSource(data=data)

# 创建柱状图
p = figure(x_range=data['x'], plot_height=300, plot_width=400)
p.vbar(x='x', top='y', width=0.9, source=source)

# 设置柱状图的点击事件回调函数
p.on_event('tap', update_table)

# 创建数据表的列定义
columns = [
    TableColumn(field='x', title='X'),
    TableColumn(field='y', title='Y'),
]

# 创建数据表
table = DataTable(source=source, columns=columns, editable=True, index_position=-1)

def update_table(event):
    # 获取点击的柱状图数据点的索引
    index = event.index['1d']['indices'][0]

    # 更新数据表的数据
    source.data['x'][index] = 'New X'
    source.data['y'][index] = 100

    # 更新数据表的视图
    table.source.data = source.data

layout = column(p, table)
curdoc().add_root(layout)
show(layout)