Python monorepo using pants (with lambda support)

Set up your workstation

If you're like me with a cool archlinux, and always the latest version of each package. You'll be disappointed that you'll need python <= 3.9.

But fear not ! pyenv is here to help. And we will be using the pyenv automatic installer here.

Setup pyenv

curl https://pyenv.run | bash

Then add this to you .bashrc | .zshrc

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

Then, you can install your prefered version (here 3.9)

pyenv install 3.9.15

Setup virtualenv

With pyenv you can setup easily you venv

# creation
pyenv virtualenv --python=python3.9 <name-of-your-venv>
# activation
pyenv activate <name-of-your-venv>

And you're good to go !

Setup plants

For monorepo we're using pants. Here, it's all setup, but for the logs I'll put all the commands I used to generate it.

mkdir <my-project> && cd $_
printf '[GLOBAL]\npants_version = "2.13.0"\n' > pants.toml
curl -L -O https://static.pantsbuild.org/setup/pants && chmod +x ./pants
# at this step, create all you workdirs and test pants with
./pants tailor

I'll let the official documentation guide you for the rest. But there is a Makefile in this project, who certainly can help you with some basics commands.

Reference