anaconda installer python
# https://docs.anaconda.com/anaconda/install/index.html shows the instructions.
# https://docs.anaconda.com/anaconda/user-guide/faq/#anaconda-faq-35 shows the steps to install python 3.5 or 3.6
# (such as "download the latest version of Anaconda and run the following command to install Python 3.5 (or 3.6) in the root environment: conda install python=3.5 or conda install python=3.6.")
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