ImportError：LinuxMint17.3 中“没有名为plotly.plotly 的模块”

每当我尝试编译以下代码以获得折线图时，都会显示一些错误。但我不知道如何解决它。这是我的code https://plot.ly/python/line-charts/ :

import plotly.plotly as py
import plotly.graph_objs as go

# Create random data with numpy
import numpy as np

N = 500
random_x = np.linspace(0, 1, N)
random_y = np.random.randn(N)

# Create a trace
 trace = go.Scatter(
x = random_x,
y = random_y
)

data = [trace]

 py.iplot(data, filename='basic-line')

显示以下错误：

mks@mks-H81M-S /media/mks/KUTUBUDDIN1/test $ python datdaPlot.py 
Traceback (most recent call last):
  File "datdaPlot.py", line 1, in <module>
    import plotly.plotly as py
 ImportError: No module named plotly.plotly
 mks@mks-H81M-S /media/mks/KUTUBUDDIN1/test $   

如何解决这个问题？

Added:
根据 Spandan Brahmbhatt 的说法，我已经安装了pip by sudo pip install plotly。但仍然显示以下错误：

您需要先安装它们。

pip install plotly
pip install cufflinks