C-c C-h ('py-help-at-point') does not work because 'py-which-shell' is 'nil' in 'py-execute-string'.

[gavenkoa]

For reference:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=654398
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=311398

Package: python-mode
Version: 1:5.1.0-1
Severity: normal

-- System Information:
Debian Release: 6.0.3
  APT prefers stable
  APT policy: (990, 'stable'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32-5-amd64 (SMP w/2 CPU cores)
Locale: LANG=ru_RU.UTF-8, LC_CTYPE=ru_RU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages python-mode depends on:
ii emacs [emacsen] 23.2+1-7 The GNU Emacs editor (metapackage)
ii emacs21 [emacsen] 21.4a+1-5.6 The GNU Emacs editor
ii emacs22-gtk [emacsen] 22.2+2-5 The GNU Emacs editor (with GTK use
ii emacs23 [emacsen] 23.3+1-4 The GNU Emacs editor (with GTK+ us
ii pymacs 0.23-1.1 interface between Emacs Lisp and P
ii python 2.6.6-3+squeeze6 interactive high-level object-orie
ii python-central 0.6.16+nmu1 register and build utility for Pyt

Versions of packages python-mode recommends:
ii pychecker 0.8.18-7 tool to find common bugs in Python

Versions of packages python-mode suggests:
ii pylint 0.21.1-1 python code static checker and UML
ii python-ropemacs 0.6c2-4 Emacs mode for Python refactoring

-- no debconf information

To get help on symbol in .py buffer I run 'py-help-at-point' and result buffer
if empty.

I debug code and find that 'py-which-shell' is 'nil' in 'py-execute-string' so
this command do nothing:

      (let ((cmd (concat py-which-shell (if (string-equal py-which-bufname
                                                          "Jython")
                                            " -" ""))))
       ^^^^^^^^^^ 'cmd' is "" as 'py-which-shell' is 'nil') ^^^^^^^
        ;; otherwise either run it synchronously in a subprocess
        (save-excursion
          (set-buffer buf)
          (shell-command-on-region (point-min) (point-max)
                                   cmd py-output-buffer))
       ^^^^^^^^^^^^^^^^^^^^ 'cmd' is "" ^^^^^^^^^^^^

To temporary fix issue I write such code in my '.emacs':

  (eval-after-load 'python-mode
    (setq-default py-which-shell py-python-command)
    ;; (py-toggle-shells 'cpython)
    )

[Andreas Roehler (a-roehler)]

Am 03.01.2012 13:54, schrieb gavenkoa:

Hi,

thanks for the detailed report. The bug should not exist in current
trunk and latest release(s)

attached a screenshot how py-help-at-point comes out here.

Andreas

[gavenkoa (gavenkoa)]

I grab latest sources:

  $ bzr log -r -1
------------------------------------------------------------
revno: 761
fixes bug(s): https://launchpad.net/bugs/910783
committer: Andreas Roehler <email address hidden>
branch nick: python-mode
timestamp: Tue 2012-01-03 10:09:06 +0100

And manually load:

  highlight-indentation.el
  python-mode.el

Bug go away.

[Andreas Roehler (a-roehler)]

Am 03.01.2012 19:34, schrieb gavenkoa:
> I grab latest sources:
>
> $ bzr log -r -1
> ------------------------------------------------------------
> revno: 761
> fixes bug(s): https://launchpad.net/bugs/910783
> committer: Andreas Roehler<email address hidden>
> branch nick: python-mode
> timestamp: Tue 2012-01-03 10:09:06 +0100
>
> And manually load:
>
> highlight-indentation.el
> python-mode.el
>
> Bug go away.
>

great, will close it with "fix committed", as that happened some time ago :)

BTW have a look a delivered INSTALL file