After buying a new Mac, use pyenv + poetry to build a Python environment.

Premise

This is the procedure for MacOS Catalina. It supports zsh.

What is pyenv?

It's a tool for easily switching between Python versions. I don't think I'll be using Python2 these days, but it's nice to be able to easily switch versions within Python3.

What is poetry?

It is a tool for managing Python packages.

.zshrc settings

echo 'export PIPENV_VENV_IN_PROJECT=1' >> ~/.zshrc
. ~/.zshrc

echo $PIPENV_VENV_IN_PROJECT
> 1

Install pyenv

git clone git://github.com/yyuu/pyenv.git ~/.pyenv
git clone git://github.com/yyuu/pyenv-update.git ~/.pyenv/plugins/pyenv-update

Add path to ~ / .zshrc

vim ~/.zshrc

.zshrc

export PYENV_ROOT="$HOME/.pyenv"
export PATH="$PYENV_ROOT/bin:$PATH"
if command -v pyenv 1>/dev/null 2>&1; then
  eval "$(pyenv init -)"
fi

Reboot the terminal

pyenv update
pyenv --version
> pyenv 1.2.20

Set the Python version used by pyenv

This time it is 3.7.4, but please specify the version you like

pyenv install 3.7.4
pyenv global 3.7.4
pyenv versions
> * 3.7.4 (set by /Users/***/.pyenv/version)

Rebooting the terminal Check version

python --version
> Python 3.7.4
pip --version
> pip 19.0.3 from /Users/***/.pyenv/versions/3.7.4/lib/python3.7/site-packages/pip (python 3.7)

pip settings

pip install --upgrade pip
pip --version
> pip 20.2 from /Users/***/.pyenv/versions/3.7.4/lib/python3.7/site-packages/pip (python 3.7)

installation of poetry

curl -sSL https://raw.githubusercontent.com/sdispater/poetry/master/get-poetry.py | python

Add the path to ~ / .zshrc

vim ~/.zshrc

export PATH="$HOME/.poetry/bin:$PATH"

Reboot the terminal

poetry --version
> Poetry version 1.0.10
poetry self update
> You are using the latest version

Add the required packages to your local Python

Add packages here as needed You can skip it

pip install pipenv
pip install awscli
pip install awslogs

Check installed packages Versions are likely to be different

pip freeze
> awscli==1.16.254
> awslogs==0.11.0
> boto3==1.9.244
> botocore==1.12.244
> certifi==2019.9.11
> colorama==0.4.1
> docutils==0.15.2
> jmespath==0.9.4
> pipenv==2018.11.26
> pyasn1==0.4.7
> python-dateutil==2.8.0
> PyYAML==5.1.2
> rsa==3.4.2
> s3transfer==0.2.1
> six==1.12.0
> termcolor==1.1.0
> urllib3==1.25.6
> virtualenv==16.7.5
> virtualenv-clone==0.5.3

Create a project with Poetry

When creating a new project

poetry new my-package

When managing an existing project with poetry (You will be asked a lot, but you can just press Enter)

poetry init

Add a package

poetry add [package name]

Install packages from pyproject.toml

poetry install

Update package from pyproject.toml

poetry update

That is all. Thank you for your hard work.