Vim-cute-python adaptation for emacs?

gistfile1.el

(defun cute-python ()
  (interactive)
  (remove-overlays)
  (let (
	(strings '(
		   (" != " . " ≢ ")
		   (" in " . " ∈ ")
		   (" or " . " ∨ ")
		   (" and " . " ∧ ")
		   (" is not " . " ¬ ")
		   (" not in " . " ∉ ")
		   (" <= " . " ≤ ")
		   (" >= " . " ≥ ")
		   (" === " . " ≡ ")
		   (" sum " . "∑")
		   ("math.sqrt" . "√")
		   ("math.pi"  . "π")
		   ("lambda" . "λ")
		   )))
    (dolist (string strings)
      (save-excursion
	(catch 'break
	  (while (< (point) (point-max))
	    (let (
		  (end (ignore-errors (search-forward (car string))))
		  (start (match-beginning 0)))
	      (if end
		  (progn
		    (let ((ol (make-overlay start end)))
		    (overlay-put ol 'display (cdr string))))
	      (throw 'break nil)))))))))