我是Python新手，plotly.plotly给出了错误

Question

我一直收到此错误，请帮忙（我已经安装了，请找截图）：

import plotly
import plotly.plotly as py
import plotly.graph_objs as go
from plotly.offline import init_notebook_mode,iplot
init_notebook_mode(connected=True)

错误是：

ImportError                               Traceback (most recent call last)
<ipython-input-10-5d605d0a202b> in <module>()
----> 1 import plotly
      2 import plotly.plotly as py
      3 import plotly.graph_objs as go
      4 from plotly.offline import init_notebook_mode,iplot
      5 init_notebook_mode(connected=True)

ImportError: No module named plotly