导入plotly.plotly

Question

我只是按照本教程import plotly.plotly as py进行操作：https://plot.ly/~Dreamshot/9199/import-plotly-plotly-version-/#/，但出现以下错误，不确定为什么吗？

0 from plotly import exceptions, files, session, tools, utils
---> 31 from plotly.api import v1, v2
     32 from plotly.basedatatypes import BaseTraceType, BaseFigure, BaseLayoutType
     33 from plotly.plotly import chunked_requests

ImportError: cannot import name 'v1'