Conflict with built-in python.el

[Philipp Stephani]

Both python.el (part of GNU Emacs) and python-mode provide a mode 'python-mode'. Installing the python-mode package will silently register python-mode.el for Python files through autoloads. I think these autoloads should be dropped because most users will prefer python.el and will be surprised that merely installing python-mode is enough to override it. Also maybe loading python-mode.el could be aborted if the python-mode function is already defined by python.el.

[Barry Warsaw (barry)]

On Dec 08, 2014, at 11:21 AM, Philipp Stephani wrote:

>Both python.el (part of GNU Emacs) and python-mode provide a mode
>'python-mode'. Installing the python-mode package will silently register
>python-mode.el for Python files through autoloads. I think these autoloads
>should be dropped because most users will prefer python.el and will be
>surprised that merely installing python-mode is enough to override it. Also
>maybe loading python-mode.el could be aborted if the python-mode function is
>already defined by python.el.

Of course, python-mode.el was there first. Plus, why would someone want to
install python-mode.el if they weren't going to use it?

[Andreas Roehler (a-roehler)]

On 08.12.2014 12:21, Philipp Stephani wrote:
> Public bug reported:
>
> Both python.el (part of GNU Emacs) and python-mode provide a mode
> 'python-mode'. Installing the python-mode package will silently register
> python-mode.el for Python files through autoloads. I think these
> autoloads should be dropped because most users will prefer python.el and
> will be surprised that merely installing python-mode is enough to
> override it. Also maybe loading python-mode.el could be aborted if the
> python-mode function is already defined by python.el.
>

As python-mode.el doesn't unload python.el by default, all commands should be available.
Will attach the result of M-x run-python RET --(python.el, buffer displays "Inferior Python:)--
and M-x python3 RET -(python-mode.el, "Comint:run" at my version)