Pyenv setup.md

reproducible pipeline with pyenv

• install pyenv
• install pyenv-virtualenv plugin
  • https://github.com/pyenv/pyenv-virtualenv
• Use pyenv to manage environment

pyenv install  3.8.10
pyenv virtualenv 3.8.10 example-env-name
pyenv local cognitive-reserve

More about pyenv here https://realpython.com/intro-to-pyenv/

• list packages used inside virtualenc

pip freeze -l > requirements.txt 

Install kernel & add it

python3 -m ipykernel install --user --name=example-env-name

upgrade all packages using pip

pip install -r requirements.txt --upgrade

Optional: Zsh Setup

Put this into .zshrc

export PYENV_VIRTUALENV_DISABLE_PROMPT=1
export PYENV_ROOT="$HOME/.pyenv"
export PATH="$PYENV_ROOT/bin:$PATH"

if which pyenv > /dev/null; then
    eval "$(pyenv init --path)" # this only sets up the path stuff
    eval "$(pyenv init -)"      # this makes pyenv work in the shell
    alias pyenv='nocorrect pyenv'
fi
if which pyenv-virtualenv-init > /dev/null; then
    eval "$(pyenv virtualenv-init - zsh)"
fi