[FIXED] Different python version Jupyter Notebook linux terminal, can't find module in jupyter, but able to do that in terminal

Issue

I have a problem. I use anaconda and make an environment. I check python in my terminal and everything is ok.

(anaconda_env) jakub@jakub-Z370-HD3P:/media/jakub/WD/EnerPres_g2020_2/bez_zmian/POPC_300K_11_01_2021_bez_zmian_parametrow/calc_order$ python
Python 3.9.1 (default, Dec 11 2020, 14:32:07) 
[GCC 7.3.0] :: Anaconda, Inc. on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import pandas as pd
>>> import numpy as np
>>> import MDAnalysis as mda
>>> 

But when I run Jupyter notebook by write in terminal

(anaconda_env) jakub@jakub-Z370-HD3P:/media/jakub/WD/EnerPres_g2020_2/bez_zmian/POPC_300K_11_01_2021_bez_zmian_parametrow/calc_order$ jupyter-notebook

I have problems

from platform import python_version

print(python_version())

3.7.1

import pandas as pd
import numpy as np
import MDAnalysis as mda

---------------------------------------------------------------------------
ModuleNotFoundError                       Traceback (most recent call last)
<ipython-input-7-c040e9ed8c6a> in <module>
      1 import pandas as pd
      2 import numpy as np
----> 3 import MDAnalysis as mda

ModuleNotFoundError: No module named 'MDAnalysis'

Why I can't import modules and why the Jupyter Python version is different?

Edit: I found the solution, I just installed on that environment jupyter again:

(anaconda_env) jakub@jakub-Z370-HD3P:/media/jakub/WD/EnerPres_g2020_2/bez_zmian/POPC_300K_11_01_2021_bez_zmian_parametrow/calc_order$ pip install jupyter

Solution

This is likely/often that the jupyter installation isn't in the same conda environment as the modules you want to import. Try "conda install jupyter" from the environment which has the modules you want to import inside jupyter.

Answered By - Richard Gowers