Function: python-indent-guess-indent-offset

python-indent-guess-indent-offset is an interactive and byte-compiled function defined in python.el.gz.

Signature

(python-indent-guess-indent-offset)

Documentation

Guess and set python-indent-offset for the current buffer.

Probably introduced at or before Emacs version 24.3.

Key Bindings

Source Code

;; Defined in /usr/src/emacs/lisp/progmodes/python.el.gz
(defun python-indent-guess-indent-offset ()
  "Guess and set `python-indent-offset' for the current buffer."
  (interactive)
  (save-excursion
    (save-restriction
      (widen)
      (goto-char (point-min))
      (let ((block-end))
        (while (and (not block-end)
                    (re-search-forward
                     (python-rx line-start block-start) nil t))
          (when (and
                 (not (python-syntax-context-type))
                 (progn
                   (goto-char (line-end-position))
                   (python-util-forward-comment -1)
                   (if (equal (char-before) ?:)
                       t
                     (forward-line 1)
                     (when (python-info-block-continuation-line-p)
                       (while (and (python-info-continuation-line-p)
                                   (not (eobp)))
                         (forward-line 1))
                       (python-util-forward-comment -1)
                       (when (equal (char-before) ?:)
                         t)))))
            (setq block-end (point-marker))))
        (let ((indentation
               (when block-end
                 (goto-char block-end)
                 (python-util-forward-comment)
                 (current-indentation))))
          (if (and indentation (not (zerop indentation)))
              (setq-local python-indent-offset indentation)
            (when python-indent-guess-indent-offset-verbose
              (message "Can't guess python-indent-offset, using defaults: %s"
                       python-indent-offset))))))))