emacs: jettison ancient python-mode.el I'm not really sure why I've been carrying this around, but it started breaking things in *extremely* weird ways today (query-replace being broken, for example) so it has clearly overstayed its welcome.

;; store all autosave files in the tmp dir
(setq auto-save-file-name-transforms
      `((".*" ,temporary-file-directory t)))
;; Basically everything I do is in version control, stop saving backup files
(setq make-backup-files nil)