I am trying to apply following solutions's key binding to overwrite all mode's key bindings for C-c > and C-c <.

From the answer for Can we do C-c > and > and > to continue indentation:

(defhydra python-indent (global-map "C-c")
  "Adjust python indentation."
  (">" python-indent-shift-right "right")
  ("<" python-indent-shift-left "left"))

which works for the python-mode; but it does not overwrite into the global bindings and such as in shell-mode, its bind remain as to sh-learn-line-indent.

Is there any way to force to overwrite the key binding for C-c > and C-c <?

I have also tried following with the help of (https://emacs.stackexchange.com/a/68029/18414), which did not work:

(with-eval-after-load "sh-script"
    (defhydra python-indent (sh-mode-map "C-c")
      (">" python-indent-shift-right "right")
      ("<" python-indent-shift-left "left"))
  • A lower level command (and the one that python-indent-shift-right/left is using) is indent-rigidly, which already provides a transient when called interactively. There is also indent-rigidly-right-to-tab-stop (and left), which might be a better command to use if you would like to have different tab offset's (besides its name making more sense when using this globally). Commented Aug 13, 2021 at 7:41
  • I just noticed that the transient provided by indent-rigidly, provides indent-rigidly-right-to-tab-stop (and left) under capital L/H, (so probably it is a little redundant to mention that you could use the transient package (instead of hydra) if you would like a way to set the offset interactively via the transient). Commented Aug 13, 2021 at 7:56
  • Hm what change should I make to work better?
    – alper
    Commented Aug 13, 2021 at 8:03
  • 'indent-rigidly` only indents when some region is active. Furthermore, it behaves weird when trying to modify the command. So in the end, I guess you are using the best (most practical) method already. Commented Aug 13, 2021 at 10:06

1 Answer 1



Since you're using a Hydra, I think the best way to do this is to create a minor mode, and then define the hydra in that minor-mode.

Start by creating your minor mode as described in this answer.

Then you just need to define the hydra in the mode-map for that mode:

(defhydra python-indent (my-mode-map "C-c")
  "Adjust python indentation."
  (">" python-indent-shift-right "right")
  ("<" python-indent-shift-left "left"))

Once you've run all this code, you can turn on my-mode, and you should have access to your keybinding in all buffers.

  • Thanks. But how can I bind it into (defhydra python-indent (sh-mode-map "C-c") ? Function that is defined as defhydra
    – alper
    Commented Aug 11, 2021 at 17:42
  • Sorry, didn't realize hydra was going to be a complication. I don't think use-package will work in this case. You'll need to create your own minor-mode I think. I'll try to update this when I have a few moments later on.
    – Tyler
    Commented Aug 11, 2021 at 18:57
  • Thanks for considering to helping out
    – alper
    Commented Aug 12, 2021 at 12:00
  • See emacs.stackexchange.com/a/358/262. After you define my-mode as described there, you can add your defhydra to my-mode-map.
    – Tyler
    Commented Aug 12, 2021 at 14:19
  • I was not able to find any example related to how to add defhydra into my-mode-map :(
    – alper
    Commented Aug 12, 2021 at 21:56

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