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Obtaining python3

Most modern operating systems, to the exception of Windows, come with python3 preinstalled.

If you are using Windows, you can try this method.

Otherwise if you are using Linux or macOS, you can simply install your own version of python in your home directory without administrator privileges. To do this we suggest using this excellent project: https://github.com/yyuu/pyenv

To install it you may use this sister project: https://github.com/yyuu/pyenv-installer

Basically you just need to type this command:

$ curl https://pyenv.run | bash

Then these lines go into your .bash_profile:

$ vim ~/.bash_profile

    export PATH="$HOME/.pyenv/bin:$PATH"
    eval "$(pyenv init -)"
    eval "$(pyenv virtualenv-init -)"

Finally, relaunch your shell for changes to take effect and type these commands to get the right version of python:

$ pyenv install 3.8.2
$ pyenv global 3.8.2
$ pyenv rehash

Obtaining pip3

If you are using a recent Ubuntu operating system and are an administrator of the computer, the following commands should install pip3 onto your computer:

$ sudo apt-get update
$ sudo apt-get install python3-pip

Otherwise, if that didn't work, you can attempt this more generic method that works with a wider range of configurations and doens't require the sudo command. Use the get-pip script like so:

$ curl -O https://bootstrap.pypa.io/get-pip.py
$ python3 get-pip.py --user

If you still did not succeed, check that you have the following required package installed before running the get-pip script again:

$ sudo apt-get update
$ sudo apt-get install python3-distutils