How do I upgrade to Python 3 6 with conda

Question

I m new to Conda package management and I want to get the latest version of Python to use f-strings in my code  Currently my version is  python -V    Python 3 5 2    Anaconda 4 2 0  x86 64    How would I upgrade to Python 3 6

User · Answer

Creating a new environment will install python 3 6     conda create --name 3point6 python 3 6 Fetching package metadata         Solving package specifications              Package plan for installation in environment  Users dstansby miniconda3 envs 3point6   The following NEW packages will be INSTALLED       openssl     1 0 2j-0          pip         9 0 1-py36 1      python      3 6 0-0           readline    6 2-2             setuptools  27 2 0-py36 0     sqlite      3 13 0-0          tk          8 5 18-0          wheel       0 29 0-py36 0     xz          5 2 2-1           zlib        1 2 8-3

User · Answer

This is how I mange to get  as currently there is no direct support- in future it will be for sure  python 3 9 in anaconda and windows 10 Note  I needed extra packages so install them  install only what you need conda create --name e39 python 3 9 --channel conda-forge

User · Answer

Anaconda has not updated python internally to 3 6   a  Method 1   If you wanted to update you will type conda update python To update anaconda type conda update anaconda If you want to upgrade between major python version like 3 5 to 3 6  you ll have to do  conda install python  pythonversion     b  Method 2 - Create a new environment  Better Method   conda create --name py36 python 3 6   c  To get the absolute latest python 3 6 5 at time of writing   conda create --name py365 python 3 6 5 --channel conda-forge   You can see all this from here  Also  refer to this for force upgrading   EDIT  Anaconda now has a Python 3 6 version here

User · Answer

In the past  I have found it quite difficult to try to upgrade in-place    Note  my use-case for Anaconda is as an all-in-one Python environment  I don t bother with separate virtual environments  If you re using conda to create environments  this may be destructive because conda creates environments with hard-links inside your Anaconda envs directory    So if you use environments  you may first want to export your environments  After activating your environment  do something like   conda env export  gt  environment yml   After backing up your environments  if necessary   you may remove your old Anaconda  it s very simple to uninstall Anaconda      rm -rf   anaconda3    and replace it by downloading the new Anaconda  e g  Linux  64 bit     cd   Downloads   wget https   repo continuum io archive Anaconda3-4 3 0-Linux-x86 64 sh     see here for a more recent one    and then executing it     bash Anaconda3-4 3 0-Linux-x86 64 sh

User · Answer

Best method I found   source activate old env conda env export  gt  old env yml   Then process it with something like this   with open  old env yml    r   as fin  open  new env yml    w   as fout      for line in fin          if  py35  in line     replace by the version you want to supersede             line   line  line rfind           n          fout write line    then edit manually the first  name       and last line  prefix       to reflect your new environment name and run   conda env create -f new env yml   you might need to remove or change manually the version pin of a few packages for which which the pinned version from old env is found incompatible or missing for the new python version   I wish there was a built-in  easier way

User · Answer

I m using a Mac OS Mojave  These 4 steps worked for me    conda update conda conda install python 3 6 conda install anaconda-client conda update anaconda

User · Answer

I found this page with detailed instructions to upgrade Anaconda to a major newer version of Python  from Anaconda 4 0     First   conda update conda conda remove argcomplete conda-manager   I also had to conda remove some packages not on the official list     backports abc beautiful-soup blaze-core   Depending on packages installed on your system  you may get additional UnsatisfiableError errors - simply add those packages to the remove list  Next  install the version of Python   conda install python  3 6   which takes a while  after which a message indicated to conda install anaconda-client  so I did  conda install anaconda-client   which said it s already there   Finally  following the directions    conda update anaconda   I did this in the Windows 10 command prompt  but things should be similar in Mac OS X

User · Answer

Only solution that works was create a new conda env with the name you want  you will  unfortunately  delete the old one to keep the name   Then create a new env with a new python version and re-run your install sh script with the conda pip installs  or the yaml file or whatever you use to keep your requirements   conda remove --name original name --all conda create --name original name python 3 8 sh install sh    or whatever you usually do to install dependencies  doing conda install python 3 8 doesn t work for me  Also  why do you want 3 6  Move forward with the word     Note bellow doesn t work  If you want to update the conda version of your previous env what you can also do is the following  more complicated than it should be because you cannot rename envs in conda    create a temporary new location for your current env   conda create --name temporary env name --clone original env name   delete the original env  so that the new env can have that name    conda deactivate conda remove --name original env name --all   or its alias   conda env remove --name original env name    then create the new empty env with the python version you want and clone the original env   conda create --name original env name python 3 8 --clone temporary env name

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