Find homebrew folder

[hugobranquinho]

Hello,

Failing to use on macos with error:

OSError: cannot load library 'libvips.42.dylib': dlopen(libvips.42.dylib, 0x0002): tried: 'libvips.42.dylib' (no such file), '/System/Volumes/Preboot/Cryptexes/OSlibvips.42.dylib' (no such file), '/usr/lib/libvips.42.dylib' (no such file, not in dyld cache), 'libvips.42.dylib' (no such file), '/usr/lib/libvips.42.dylib' (no such file, not in dyld cache).  Additionally, ctypes.util.find_library() did not manage to locate a library called 'libvips.42.dylib'

Not sure why, but for mac M* the homebrew folder is different by default. My homebrew folder is /opt/homebrew, tried with the following change and worked fine. Let me know what you think.

Thanks!

[jcupitt]

Hi @hugobranquinho,

Did you see:

https://docs.brew.sh/Homebrew-and-Python

So (I think!) you need to install the homebrew python, make a venv, then install pyvips and it should work.

[hugobranquinho]

Hi @jcupitt

Thanks for the quick response!

I tried to use homebrew with python before and had some issues (it was a long time ago, didn't test again)
But, it doing that means that the usage of pyvips is only allowed to a homebrew setup right?
Would make sense to make it work for all setups?

Thanks

[jcupitt]

Or you can set your PYTHONPATH or library path to include the homebrew lib area. I think that's better than wiring magic paths into pyvips.

I think there's another problem -- pyvips has two main modes, API and ABI. You've patched the ABI startup path, but you should really be using API mode (it's quite a bit faster).

Probably when you installed pyvips you had not set up your shell for homebrew, so pyvips could not find the libvips headers.

I think you need to adjust your shell setup so that pkg-config is working, then try installing pyvips again. You'll probably need a venv too (python insists on this now).

[hugobranquinho]

Thanks for the quick response! Sorry for my delayed one.

I'm on python3.8 (not installed by homebrew) and using a venv, made some changes and now python can find homebrew libs.
Thanks for the help! Closing this PR.

Amazing lib! 🙌