我想在bokeh python中单击一下就选择和取消选择曲线。

from bokeh.plotting import figure, show
from bokeh.models import ColumnDataSource, TapTool
from bokeh.io import output_notebook

source = ColumnDataSource(data=dict(x=[1, 2, 3, 4, 5], y=[2, 4, 6, 8, 10]))

p = figure(plot_width=400, plot_height=400)
p.line('x', 'y', source=source)

tap_tool = TapTool()
p.add_tools(tap_tool)

def callback(event):
    selected = source.selected.indices
    if len(selected) > 0:
        # 选择了曲线
        print("选择了曲线：", selected)
    else:
        # 取消选择曲线
        print("取消选择曲线")

tap_tool.callback = callback

output_notebook()
show(p)