I setup flymake with pep8 to validate style of python files with the following configuration:
(when (load "flymake" t) (defun flymake-pylint-init () (let* ((temp-file (flymake-init-create-temp-buffer-copy 'flymake-create-temp-inplace)) (local-file (file-relative-name temp-file (file-name-directory buffer-file-name)))) (list "pep8" (list "--repeat" local-file)))) (add-to-list 'flymake-allowed-file-name-masks '("\\.py\\'" flymake-pylint-init))) (defun my-flymake-show-help () (when (get-char-property (point) 'flymake-overlay) (let ((help (get-char-property (point) 'help-echo))) (if help (message "%s" help))))) (add-hook 'python-mode-hook '(lambda() (flymake-mode)))
It worked fine from the start. I just evaluated it in a scratch buffer and worked for several weeks, then I suddenly closed Emacs and after that restart messages are not shown when you navigate to a problem line, but these lines are still highlighted.
(message "DDD") - works
pep8 works fine too in a terminal
Any ideas? I think I forgot some step.