Use a private virtualenv for dependencies

[ernstki]

I routinely delete ~/.local/lib/pythonX.XX out of frustration, and as a reward for my recklessness, I often get an unpleasant surprise when when something I pip install --usered in there was required by another piece of software I rely on.

Such is the case with vim-ghost and its required Python dependencies. So here is a patch that will put those dependencies (~36 MB of them) in ~/.vim/<plug dir>/vim-ghost/venv instead of in your user install.

It was written by Gemini 3.1 Pro, but audited and tested by me. I have not yet tested on Windows, and I think I should probably do that before someone seriously thought of merging it. Thusly, I'm marking it WIP.

Keep mind that you can use https://git.host/user/repo/pull/12345.diff to get a patch file, which is trivially applied to your own local copy of the codebase using the good old Unix patch utility:

cd ~/.vim/*/vim-ghost
curl -sLOJ https://github.com/raghur/vim-ghost/pull/53.diff
patch -p1 < 53.diff

Hope that helps.

Assisted by: Aider + gemini/gemini-3.1-pro-preview