如何使用Jupyter Widgets创建依赖下拉列表，以便从dict获取数据？

from ipywidgets import interact, Dropdown
import ipywidgets as widgets

data = {
    '选项1': ['数据1', '数据2', '数据3'],
    '选项2': ['数据4', '数据5', '数据6'],
    '选项3': ['数据7', '数据8', '数据9']
}

def update_options(option1):
    option2_widget.options = data[option1]

option1_widget = Dropdown(options=list(data.keys()))
option1_widget.observe(lambda change: update_options(change['new']), names='value')

option2_widget = Dropdown()

widgets.VBox([option1_widget, option2_widget])

from ipywidgets import interact, Dropdown
import ipywidgets as widgets

data = {
    '选项1': ['数据1', '数据2', '数据3'],
    '选项2': ['数据4', '数据5', '数据6'],
    '选项3': ['数据7', '数据8', '数据9']
}

def update_options(option1):
    option2_widget.options = data[option1]

option1_widget = Dropdown(options=list(data.keys()))
option1_widget.observe(lambda change: update_options(change['new']), names='value')

option2_widget = Dropdown()

widgets.VBox([option1_widget, option2_widget])