Xavier de Gaye wrote:
> >> On Wed, May 15, 2013 at 8:51 PM, Bram Moolenaar wrote:
> >> >> >":python os.chdir('/tmp')" makes short buffer names invalid. (Xavier
> >> >> >de Gaye)
> >> >> >Check directory and call shorten_fnames()?
> >> >>
> >> >> Probably not only the python problem.
> >> >
> >> > I wonder if there is a hook inside Python, so that we can do the
> >> > equivalent of ":cd" in Vim, handling the side effects.
> >>
> >>
> >> Indeed, a hook to chdir can be made with the following code in
> >> a module named vim_hook:
> >>
> >> ########### vim_hook.py ###########
> >> import vim
> >> import os
> >>
> >> _chdir = os.chdir
> >>
> >> def chdir(path):
> >> _chdir(path)
> >> vim.command("cd " + path)
> >>
> >> os.chdir = chdir
> >> ###########
> >>
> >> This module is imported on vim startup with:
> >>
> >> PyRun_SimpleString("import vim_hook");
> >>
> >>
> >> To test that this fixes os.chdir, run the following commands after
> >> having copied the above vim_hook.py file in the current directory:
> >>
> >> :py3 import sys; sys.path[:1] = ['.']; import vim_hook
> >> :py3 import os; os.chdir("/tmp")
> >
> > OK, but we want this to work without any commands being used in a
> > script. It should be done when initalizing Python.
>
> This is what I meant.
>
> The attached patch does this.
>
> A new directory named 'python' is added to the vim runtime files.
> This directory contains at the moment a _vim_python.py file that is
> imported when initalizing Python after the python directory pathname
> has been added to sys.path.
>
> _vim_python.py is meant to contain (or to import the other components
> of) the python part of the vim-python interface.
Interesting. So we would have a $VIMRUNTIME/python directory and we can
put Python scripts there that we include with the distribution.
I'm sure it is only a small step that users will ask to have a python
directory in ~/.vim/python. Or more general, using 'runtimepath'.
Then a plugin does not require to have its Python code in between a
:python << EOF and EOF. That would be a lot nicer, right?
What do others think?
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