Emacs ruff flycheck config

flycheck-ruff.el

(require 'flycheck)

;; From https://github.com/flycheck/flycheck/issues/1974#issuecomment-1343495202
(flycheck-define-checker python-ruff
  "A Python syntax and style checker using the ruff utility.
To override the path to the ruff executable, set
`flycheck-python-ruff-executable'.
See URL `http://pypi.python.org/pypi/ruff'."
  :command ("ruff"
            "check"
            "--output-format=text"
            (eval (when buffer-file-name
                    (concat "--stdin-filename=" buffer-file-name)))
            "-")
  :standard-input t
  :error-filter (lambda (errors)
                  (let ((errors (flycheck-sanitize-errors errors)))
                    (seq-map #'flycheck-flake8-fix-error-level errors)))
  :error-patterns
  ((warning line-start
            (file-name) ":" line ":" (optional column ":") " "
            (id (one-or-more (any alpha)) (one-or-more digit)) " "
            (message (one-or-more not-newline))
            line-end))
  :modes (python-mode python-ts-mode))

;; Use something adapted to your config to add `python-ruff' to `flycheck-checkers'
;; This is an MVP example:
(setq python-mode-hook
      (list (defun my-python-hook ()
              (unless (bound-and-true-p org-src-mode)
                (when (buffer-file-name)
                  (setq-local flycheck-checkers '(python-ruff))
                  (flycheck-mode))))))

Nevermind, the problem was I apparently had ruff installed with both pip and homebrew so it was using the pip version which was very out of date. So adding the homebrew one to the exec path fixed the issue. Thank you for the help!