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I was looking around in foreign but public init.el files and setup a which-function-mode that use the headline instead of the modeline for it's content.

I couldn't find a use-package example for that and I am still not clear with lisp code. The which-function-mode now is used in nearly every buffer. But I want it only for pyhton (emacs in build).

How do I have to modify the use-package to achieve this goal?

;; =========
;; Which Function Mode
;; =========
(use-package which-func
  :config
  (add-hook 'prog-mode-hook
        (lambda()
          (which-func-mode)))
  ;; replace nothing found symbol "???"
  (setq which-func-unknown "∅")
  ;; add to headline
  (setq-default header-line-format
        '((which-func-mode ("" which-func-format " "))))
  ;; remove from modeline
  (setq mode-line-misc-info
    (delete '(which-function-mode (which-func-mode
                       ("" which-func-format " ")))
       mode-line-misc-info))
)

1 Answer 1

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If you want it only for python, just change prog-mode-hook to python-mode-hook

(use-package which-func
  :config
  (add-hook 'python-mode-hook 'which-func-mode)
  ;; replace nothing found symbol "???"
  (setq which-func-unknown "∅")
  ;; add to headline
  (setq-default header-line-format
                '((which-func-mode ("" which-func-format " "))))
  ;; remove from modeline
  (setq mode-line-misc-info
        (delete '(which-function-mode (which-func-mode
                                       ("" which-func-format " ")))
                mode-line-misc-info)))
2

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