How to install 2 Anacondas Python 2 and 3 on Mac OS

Question

I m relatively new in Mac OS  I ve just installed XCode  for c   compiler  and Anaconda with the latest Python 3  for myself   Now I m wondering how to install properly second Anaconda  for work  with Python 2   I need both versions to work with iPython and Spyder IDE  Ideal way is to have totally separate Python environments  For example  I wish I could write like conda install scikit-learn for Python 3 environment and something like conda2 install scikit-learn for Python 2

User · Answer

Edit   Please be sure that you should have both Python installed on your computer    Maybe my answer is late for you but I can help someone who has the same problem   You don t have to download both Anaconda    If you are using Spyder and Jupyter in Anaconda environmen and   If you have already Anaconda 2 type in Terminal       python3 -m pip install ipykernel      python3 -m ipykernel install --user   If you have already Anaconda 3 then type in terminal       python2 -m pip install ipykernel      python2 -m ipykernel install --user   Then before use Spyder you can choose Python environment like below  Sometimes only you can see root and your new Python environment  so root is your first anaconda environment     Also this is Jupyter  You can choose python version like this     I hope it will help

User · Answer

This may be helpful if you have more than one python versions installed and dont know how to tell your ide s to use a specific version    Install anaconda  Latest version can be found here Open the navigator by typing anaconda-navigator in terminal Open environments  Click on create and then choose your python version in that   Now new environment will be created for your python version and you can install the IDE s which are listed there  just by clicking install in that   Launch the IDE in your environment so that that IDE will use the specified version for that environment     Hope it helps

User · Answer

There is no need to install Anaconda again  Conda  the package manager for Anaconda  fully supports separated environments  The easiest way to create an environment for Python 2 7 is to  do  conda create -n python2 python 2 7 anaconda   This will create an environment named python2 that contains the Python 2 7 version of Anaconda  You can activate this environment with  source activate python2   This will put that environment  typically   anaconda envs python2  in front in your PATH  so that when you type python at the terminal it will load the Python from that environment    If you don t want all of Anaconda  you can replace anaconda in the command above with whatever packages you want  You can use conda to install packages in that environment later  either by using the -n python2 flag to conda  or by activating the environment

[python] How to install 2 Anacondas (Python 2 and 3) on Mac OS

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