In which conda environment is Jupyter executing

Question

I have jupyter anaconda python3 5    How can I know which conda environment is my jupyter notebook running on      How can I launch jupyter from a new conda environment

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Question 1  How can I know which conda environment is my jupyter notebook running on     Launch your Anaconda Prompt and run the command conda env list to list all the available conda environments          You can clearly see that I ve two different conda environments installed on my PC  with my currently active environment being root Python 2 7   indicated by the asterisk    symbol ahead of the path          Question 2  How can I launch jupyter from a new conda environment     Now  to launch the desired conda environment  simply run activate  lt environment name gt   In this case  activate py36         For more info  check out this link and this previous Stack Overflow question

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which environment is jupyter executing   import sys print sys executable    create kernel for jupyter notebook  source activate myenv python -m ipykernel install --user --name myenv --display-name  Python  myenv   source activate other-env python -m ipykernel install --user --name other-env --display-name  Python  other-env     http   ipython readthedocs io en stable install kernel install html kernel-install

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to show which conda env a notebook is using just type in a cell   conda info  if you have grep  a more direct way   conda info   grep  active env

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Adding to the above answers  you can also use   which python   Type this in a cell and this will show the path of the environment  I m not sure of the reason  but in my installation  there is no segregation of environments in the notebook  but on activating the environment and launching jupyter notebook  the path used is the python installed in the environment

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As mentioned in the comments  conda support for jupyter notebooks is needed to switch kernels  Seems like this support is now available through conda itself  rather than relying on pip   http   docs continuum io anaconda user-guide tasks use-jupyter-notebook-extensions   conda install nb conda  which brings three other handy extensions in addition to Notebook Conda Kernels

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You can also switch environments in Anaconda Navigator  install Jupiter and run it

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If the above ans doesn t work then try running conda install ipykernel in new env and then run jupyter notebook from any env  you will be able to see or switch between those kernels

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To check on which environment your notebook is running type the following commands in the notebook shell  import sys print sys executable    To launch the notebook in a new environment deactivate that environment first  Create a conda environment and then install the ipykernel  Activate that environment  Install jupyter on that environment   conda create --name  envname  conda install ipykernel --name  envname  python -m ipykernel install --prefix C  anaconda envs  envname  --name  envname  activate envname pip install jupyter    In your case path  C  anaconda envs  envname   could be different  check accordingly  After following all steps  launch notebook and do step 1  run the following in shell   sys executable   This should show  Anaconda envs envname

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I have tried every method mentioned above and nothing worked  except installing jupyter in the new environment   to activate the new environment conda activate new env replace  new env  with your environment name   next install jupyter  pip install jupyter   you can also install jupyter by going to anaconda navigator and selecting the right environment  and installing jupyter notebook from Home tab

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Question 1  Find the current notebook s conda environment  Open the notebook in Jupyter Notebooks and look in the upper right corner of the screen    It should say  for example   Python  env name   if the language is Python and it s using an environment called env name        Question 2  Start Jupyter Notebook from within a different conda environment  Activate a conda environment in your terminal using source activate  lt environment name gt  before you run jupyter notebook  This sets the default environment for Jupyter Notebooks  Otherwise  the  Root  environment is the default     You can also create new environments from within Jupyter Notebook  home screen  Conda tab  and then click the plus sign    And you can create a notebook in any environment you want  Select the  Files  tab on the home screen and click the  New  dropdown menu  and in that menu select a Python environment from the list

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For checking on Which Python your Jupyter Notebook is running try executig this code   from platform import python version print python version     In order to run jupyter notebook from your environment activate MYenv and install jupyter notebook using command pip install jupyter notebook  then just jupyter notebook

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Because none of the answers above worked for me  I write here the solution that finally solved my problem on Ubuntu  My problem was  I did the following steps      Activate my environment  conda activate MyEnv  Start jupyter notebook jupyter notebook   Although MyEnv was active in the terminal and had an asterix when writing conda env list  but jupyter notebook was started with the base environment  Installing nb conda and ipykernel didn t solve the problem for me either  Additionally  the conda tab wasn t appearing in jupyter notebook and also clicking on the kernels or going to the menu Kernel- gt Change Kernel didn t show the kernel MyEnv  Solution was  install the jupyter environment kernel in MyEnv environment   pip install environment kernels   After that when starting jupyter notebook  it is started with the right environment  You can also switch between environments without stopping the kernel  by going to the menu Kernel- gt Change Kernel and selecting the desired kernel

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The following commands will add the env in the jupyter notebook directly  conda create --name test env conda activate test env conda install -c anaconda ipykernel python -m ipykernel install --user --name test env  Now It should say   quot Python  test env  quot  if the language is Python and it s using an environment called test env

[ipython] In which conda environment is Jupyter executing?

Question 1: How can I know which conda environment is my jupyter notebook running on?

Question 2: How can I launch jupyter from a new conda environment?

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