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I'm struggling to get type checking working in spacemacs, and I would appreciate any help. I've installed MyPy properly on my system (I can run it from terminal) and added python-mypy to dotspacemacs-additional-packages, and if I run flycheck-verify-setup (M-m e v) python-mypy is listed there with the correct path to the executable (it's not disabled either). However, I still don't get an error even if running mypy from the terminal does produce an "incompatible type" error.

Any hints as to what I'm missing?

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2 Answers 2

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In case anyone else struggles with this, simply doing pip install flake8-mypy did the trick for me.

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  • This seemed to do the trick in normal emacs for me too!
    – n1k31t4
    Jun 28, 2018 at 23:44
  • For support for plain mypy integration look here.
    – thinwybk
    Jan 5, 2019 at 18:46
  • I added python-mypy to dotspacemacs-additional-packages but got Package python-mypy is unavailable. Is the package name misspelled?
    – thinwybk
    Jan 5, 2019 at 18:57
0

I added flycheck-mypy to dotspacemacs-additional-packages

dotspacemacs-additional-packages
'(
  flycheck-mypy
  )

and enabled it in user-config (python-flake8 is required)

(defun dotspacemacs/user-config ()
  (require 'flycheck-mypy)
  (flycheck-add-next-checker 'python-flake8 'python-mypy t)
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