problem with sdf_helper on Apple M4 Max (?)

[lyutikov-bot]

Just got Apple M4 Max. It seems there is a structural conflict (?). Python calling import sdf_helper as sh
returns: ModuleNotFoundError: No module named ‘sdf_helper'

pip works OK:
% pip install SDFUtils
Defaulting to user installation because normal site-packages is not writeable
Requirement already satisfied: SDFUtils in /Users/lyutikov/Library/Python/3.14/lib/python/site-packages (1.0.0)

But sdfutils fails:
% make sdfutils
warning: /Library/Developer/CommandLineTools/usr/bin/ranlib: archive library: lib/libsdfc.a will be fat and ar(1) will not be able to operate on it
/Library/Developer/CommandLineTools/usr/bin/ar: internal ranlib command failed
make[1]: *** [lib/libsdfc.a] Error 1
make: *** [sdfutils] Error 2

[TomGoffrey]

Hopefully this being closed means you've sorted the issue, but if not we recommend using the python sdfr package:

https://epochpic.github.io/documentation/visualising_output/python_sdf_helper.html

Which avoids the need to compile sdfutils.