install to site packages instead of user appdata

[hannesdelbeke]

fix for #9

blender pip now installs to the blender modules folder.
specifically, site packages, which keeps it separated from the default python modules included with blender

[amb]

Does it work on both Mac and Linux? Mac has some write protection issues with binaries and Linux uses its system Python for Blender. There's also 'modules' folder right next to the 'scripts' folder inside Blender that could possibly work. Also is the static path to Python lib/site-packages in the Python stable API? Or is it something that can break later.

[hannesdelbeke]

since i don't have mac and linux, i d need someone to test this.

I would assume it works since we get the paths from python and blender, which both are compatible with mac & linux.

There's also 'modules' folder right next to the 'scripts' folder inside Blender that could possibly work

the site packages live inside that folder :)
if you install to the modules folder directly, it can be unclear what modules you can safely uninstall later
This is why python has a site packages folder

[hannesdelbeke]

Linux uses its system Python

not sure what the best way here would be
system python means it also uses the userpath, which is not the case on blender windows.
I can't find much info online regarding python blender on linux

[amb]

I tested it on Linux and it does not work. The install of Python modules through PIP works fine but it goes into a wrong folder, thus Blender being unable to load them.

[hannesdelbeke]

that's unfortenate. what do you think would be a good way to handle this?

[hannesdelbeke]

recently found out about bpy.utils.script_path_user()
which could be the solution to this.

it's a userscript path handled by blender. so should be supported on all OS
will make a PR update and test

[hannesdelbeke]

could you have another test on mac and linux?
it should work now

tested on windows

[hannesdelbeke]

i've also removed init_utils.bat sicne it doesn't seem to be used anywhere, and is probably not relevant to this addon

[hannesdelbeke]

been using Path(str(bpy.utils.script_path_user())) / "addons/modules" lately and this seems to work quite well.
think this PR might need updating to add addons/modules