How to know which is running in Jupyter notebook

Question

I use Jupyter notebook in a browser for Python programming  I have installed Anaconda  Python 3 5   But I m quite sure that Jupyter in running my python commands with the native python interpreter and not with anaconda  How can I change it and use Anaconda as interpreter  Ubuntu 16 10 -- Anaconda3

User · Answer

from platform import python version  print python version      This will give you the exact version of python running your script  eg output    3 6 5

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Assuming you have the wrong backend system you can change the backend kernel by creating a new or editing the existing kernel json in the kernels folder of your jupyter data path jupyter --paths  You can have multiple kernels  R  Python2  Python3   virtualenvs   Haskell   e g  you can create an Anaconda specific kernel      lt anaconda-path gt  bin python3 -m ipykernel install --user --name anaconda --display-name  Anaconda    Should create a new kernel    lt jupyter-data-dir gt  kernels anaconda kernel json         argv       lt anaconda-path gt  bin python3    -m    ipykernel    -f     connection file           display name    Anaconda        language    python      You need to ensure ipykernel package is installed in the anaconda distribution   This way you can just switch between kernels and have different notebooks using different kernels

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Creating a virtual environment for Jupyter Notebooks  A minimal Python install is  sudo apt install python3 7 python3 7-venv python3 7-minimal python3 7-distutils python3 7-dev python3 7-gdbm python3-gdbm-dbg python3-pip   Then you can create and use the environment   usr bin python3 7 -m venv test cd test source test bin activate pip install jupyter matplotlib seaborn numpy pandas scipy   install other packages you need with pip apt jupyter notebook deactivate   You can make a kernel for Jupyter with  ipython3 kernel install --user --name test

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import sys print sys executable  print sys version  print sys version info   Seen below  - output when i run JupyterNotebook outside a CONDA venv  home dhankar anaconda2 bin python 2 7 12  Anaconda 4 2 0  64-bit    default  Jul  2 2016  17 42 40    GCC 4 4 7 20120313  Red Hat 4 4 7-1   sys version info major 2  minor 7  micro 12  releaselevel  final   serial 0     Seen below when i run same JupyterNoteBook within a CONDA Venv created with command -- conda create -n py35 python 3 5    Here - py35   is name of my VENV  in my Jupyter Notebook it prints  -  home dhankar anaconda2 envs py35 bin python 3 5 2  Continuum Analytics  Inc    default  Jul  2 2016  17 53 06    GCC 4 4 7 20120313  Red Hat 4 4 7-1   sys version info major 3  minor 5  micro 2  releaselevel  final   serial 0   also if you already have various VENV s created with different versions of Python you switch to the desired Kernel by choosing KERNEL  gt  gt  CHANGE KERNEL from within the JupyterNotebook menu    JupyterNotebookScreencapture Also to install ipykernel within an existing CONDA Virtual Environment - http   ipython readthedocs io en stable install kernel install html kernels-for-different-environments Source --- https   github com jupyter notebook issues 1524     path to python -m  ipykernel install --help  usage  ipython-kernel-install  -h   --user   --name NAME                             --display-name DISPLAY NAME                             --profile PROFILE   --prefix PREFIX                             --sys-prefix   Install the IPython kernel spec  optional arguments  -h  --help            show this help message and exit --user                Install for the current user instead of system-wide --name NAME           Specify a name for the kernelspec  This is needed to have multiple IPython kernels at the same time  --display-name DISPLAY NAME Specify the display name for the kernelspec  This is helpful when you have multiple IPython kernels  --profile PROFILE     Specify an IPython profile to load  This can be used to create custom versions of the kernel  --prefix PREFIX       Specify an install prefix for the kernelspec  This is needed to install into a non-default location  such as a conda virtual-env  --sys-prefix          Install to Python s sys prefix  Shorthand for --prefix   Users bussonniermatthias anaconda   For use in conda virtual-envs

User · Answer

import sys sys executable   will give you the interpreter  You can select the interpreter you want when you create a new notebook  Make sure the path to your anaconda interpreter is added to your path  somewhere in your bashrc bash profile most likely    For example I used to have the following line in my  bash profile  that I added manually    export PATH   HOME anaconda3 bin  PATH    EDIT  As mentioned in a comment  this is not the proper way to add anaconda to the path  Quoting Anaconda s doc  this should be done instead after install  using conda init      Should I add Anaconda to the macOS or Linux PATH       We do not recommend adding Anaconda to the PATH manually  During   installation  you will be asked    Do you wish the installer to   initialize Anaconda3 by running conda init     We recommend    yes     If   you enter    no     then conda will not modify your shell scripts at all    In order to initialize after the installation process is done  first   run source  lt path to conda gt  bin activate and then run conda init

[python] How to know which is running in Jupyter notebook?

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