如何在从 WSL2+ubuntu20.04 运行的 Jupyter 笔记本中安装 Python 包

Question

I am running jupyter notebook from WSL2+Ubuntu20.04. However, the jupyter notebook image does not include many package.

For instance, I would like to install pandas and append sys path accordingly.

(UPDATE) Based on the recommendation of Prayson, I did the following from Jupytr notebook terminal:

python3 -m pip install --upgrade --user pip 
python3 -m pip install --user pandas 

Both steps ran successfully. Then I could call the following code snipper successfully for the FIRST TIME only: I ran the following code snippet:

import sys

import numpy as np
import pandas as pd
import matplotlib.pyplot as plt

However, when I shut down and restarted again, I could not import pandas again and I am getting following error:

ModuleNotFoundError                       Traceback (most recent call last)
<ipython-input-3-df58772bf04b> in <module>
      7 
      8 import numpy as np
----> 9 import pandas as pd
     10 import matplotlib.pyplot as plt
     11 

ModuleNotFoundError: No module named 'pandas'

I may be missing adding path. However, I am not sure how to do it correctly.

Any guidance would be appreciated.

Answer 1

Make sure you are installing packages in the correct environment. From the code trace above, it appears that Pandas is installed in environment serving Jupyter server.

import sys

# upgrade pip and install package
!{sys.executable} -m pip install –upgrade pip && !{sys.executable} -m pip install package 

The above code, makes sure that a package is install in the environment that you are currently in session.

You can open terminal session in Jupyter that will give you assess to shell. I would recommend installing packages there as you would in normal terminal. See Jupyter Documentation for how to access terminal

Answer 2

You just need to install the package from the terminal, no need to do anything in Jupyter.

To install pandas, type in terminal:

pip install pandas

Now import in jupyter, it will work fine.

Also, no need to use sudo.