emacs-blacken

Blacken uses black to format a Python buffer. It can be called explicitly on a certain buffer, but more conveniently, a minor-mode 'blacken-mode' is provided that turns on automatically running black on a buffer before saving. To automatically format all Python buffers before saving, add the function blacken-mode to python-mode-hook: (add-hook 'python-mode-hook 'blacken-mode)

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