Subject: bug#28580: python.el: native completion setup failed

From: Андрей Парамонов<[email-masked]>
Date: Mon, 25 Sep 2017 00:08:50 +0300

2017-09-25 0:00 GMT+03:00 Noam Postavsky <[email-masked]>:

> Does M-: (python-shell-completion-native-try) RET in the *Python* buffer
> return nil?

Yes it does!

> Perhaps try putting some `message' calls into
> python-shell-completion-native-get-completions? (Using the debugger is a
> bit tricky due to the timing of process communication.)  Especially
> check the contents of the current inside the `when' block at the end:
>
>               ;; Grab output until our dummy completion used as
>               ;; output end marker is found.
>               (when (python-shell-accept-process-output
>                      process python-shell-completion-native-output-timeout
>                      comint-redirect-finished-regexp)
>                 (re-search-backward "0__dummy_completion__" nil t)
>                 (cl-remove-duplicates
>                  (split-string
>                   (buffer-substring-no-properties
>                    (line-beginning-position) (point-min))
>                   "[ \f\t\n\r\v()]+" t)
>                  :test #'string=))
>

Unfortunately my distrib doesn't seem to have the source el-files :-(

> Try the recipe in https://debbugs.gnu.org/cgi/bugreport.cgi?bug=28051#8
> and see if you suffer from that bug.
>

Hm, the bug and the one mentioned inside describe bad behavior of Python2,
but in my case it's the opposite :-/

Best wishes,
Andrey Paramonov