I’ve started looking at plugin development and have managed to add a new linter by copy-pasting the

docformatter

one and tweaking it to use

vulture

. All works fine — there is a lot to learn, but I think the approach taken when structuring plugin code is fairly intuitive for a newcomer. I have a specific question about the

flake8

linter available out-of-the-box with Pants. The nice thing about

flake8

is that there are tons of plugins (https://github.com/DmytroLitvinov/awesome-flake8-extensions#clean-code) which means that after installing any of those into a Python environment that has

flake8

installed, those plugins will be picked up by the

flake8

and their rules will run as well. I wonder what would be a smart thing to do to bring

flake8

plugins support in Pants into my monorepo? The

flake8

requirement is specified at https://github.com/pantsbuild/pants/blob/release_2.5.1rc3/src/python/pants/backend/python/lint/flake8/subsystem.py#L18 so I wonder how could I extend it to use multiple

flake8

plugins (each being a PyPI package) when

./pants lint

goal is run?

You can add any extra requirements to the

extra_requirements

option in the

flake8

scope

@happy-kitchen-89482 oh this is great, no idea how I missed that! I confirm that it does what I need. Noticed that

extra_requirements

is in other subsystems as well, so this is going to be very convenient. Thanks for the help!