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Kenil Vasani
Kenil Vasani

Kenil Vasani

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Asked: 2020-12-14T21:06:44+00:00 In:

jupyter notebook import error: no module named ‘matplotlib’

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I’m an ubuntu 16.4 user and I installed anaconda3 and using both python2 and python3 kernels.

>>>jupyter kernelspec list
Available kernels:
python2 /home/peterkim/.local/share/jupyter/kernels/python2
python3 /home/peterkim/anaconda3/share/jupyter/kernels/python3

and.. the problem was that I don’t know where/how to install packages in order to for my python2 jupyter notebook not to make error ‘no module named …’.
I tried pip install matplotlib and conda install matplotlib and I also appended ‘/home//anaconda2/pkgs’ to the sys.path.

(I also installed anaconda2 in search of the way of using parallel kernels. After I realised that anaconda2 was not needed. but I didn’t uninstall it.)

screenshot

thank you for helping me in advance..!

jupyter-notebookpython
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    1. Kenil Vasani

      Kenil Vasani

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      Best Answer

      I’d recommend reading through here:

      https://conda.io/docs/py2or3.html

      I had the same problem after installing a Python 2.7 environment inside my Anaconda3 installation. I’m not sure which command I used to create the environment, but it actually didn’t install all the optional packages that are usually bundled with Anaconda (like matplotlib, numpy, …). But that’s not a big issue, you can easily install additional packages with pip as follows:

      First, list your conda environments:

      C:\Users\Felix>conda info --envs
# conda environments:
#
ipykernel_py2            D:\Anaconda\envs\ipykernel_py2
root                  *  D:\Anaconda

      Next, activate your python 2 environment using source activate <env> (Linux/OSX) or activate <env> (Windows):

      C:\Users\Felix>activate ipykernel_py2

(ipykernel_py2) C:\Users\Felix>

      Finally, use pip to install the required packages:

      (ipykernel_py2) C:\Users\Felix>pip install matplotlib
Collecting matplotlib
...
Successfully installed matplotlib-2.0.0

      Hope that this helps.

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