2016-09-19 23:21 GMT+09:00 Ken Takata <ktakata65...@gmail.com>:

> Hi,
>
> 2013/6/1 Sat 3:49:45 UTC+9 Bram Moolenaar wrote:
> > Marc Weber wrote:
> >
> > > There are two important problems with python support:
> > > 1) you still have to use .viml in order to load python
> > > 2) when using python its you having to remember which python to use
> despite
> > >   most codes may work with python and python3 interpreter.
> > >   Using the same (only one) interpreter is very important, because
> > >   many vims will only support one, and loading both is slower
> > >
> > > So this patch
> > > - introduces the the option loadpyplugins, which is disabled by default
> > >   like loadplugins it tells vim to load plugin/*.py files
> > > - Special commands like "# requires python 2.x" can be used to force
> Vim using
> > >   pyfile or py3file. If such a comment is missing the pythonx python
> version setting
> > >   is used to decide upon which interpreter to use. Obviously this
> setting
> > >   should be set early in your .vimrc and not be touched again
> > >   Likewise there are :pyxfile :pydo :pythonx :pyx pyxeval() to run
> python code
> > >   depending on 'pythonx' setting.
> > > - adds some of the commands to python.vim syntax file
> >
> > I think it's a good idea to help people write portable Python plugins.
> > We want to avoid that every plugin has to be written twice.
> >
> > Not everything is compatible between Python 2 and 3 though.  Is there a
> > way to do:
> >
> >       if python3:
> >           do-it-this-way
> >       else:
> >           do-it-that-way
> >
> > Then :pyx would really work.  Is that possible without getting errors
> > for some code that works only in one versin?
> >
> > In the patch the docs have the section "Python 3" twice.
> >
> > The default for 'pythonx' should be zero when build with both Python 2
> > and 3.  Then the first Python command sets it.
> >
> > Should be called 'pythonversion' actually.
>
> Three years has past from this discussion but still I think that the pyx*
> commands and functions are useful.  So I have updated Marc's patch for Vim
> 8.0.
> Changes from the original patch are:
>
> * Update for the latest code base.
> * Update documents.
> * Fix coding style.
> * Add has('pythonx').
> * Rename the 'pythonx' option to 'pythonxversion'.
> * Make Python 3 as the default when build with both Python 2 and 3.
>   Ubuntu 16.04 and some other distributions already make Python 3 as the
>   default. It's good time to set Python 3 as the default.
>

FYI.  Although I'm not sure about Sierra, which is to be released this
autumn, the existing versions of OS X have Python 2.x only.  So it would be
nice if you could take that into consideration, too.

* Support shebangs with :pyxfile.
> * Respects the 'modelines' option when checking pythonx special comments
> with
>   :pyxfile.
> * Remove the 'loadpyplugins' option.
>   There was no consensus about this option.
> * Add checking when setting the 'pythonxversion' option.
>   Accept only 2 and 3.
>
> Please check this:
> https://bitbucket.org/k_takata/vim-ktakata-mq/src/
> c861d978882ce218b9d8292797ffd0569a60094a/pythonx.patch?
> fileviewer=file-view-default
> (Tests are not available yet.)
>
> This would be most useful when used with pythonx-directory.
> (:help pythonx-directory)
>
> Regards,
> Ken Takata
>
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