∇ python3.11 -m venv .venv
∇ source .venv/bin/activate
∇ pip install numpy faiss-cpu packaging
Collecting numpy
  Using cached numpy-2.0.0-cp311-cp311-macosx_14_0_arm64.whl.metadata (60 kB)
Collecting faiss-cpu
  Using cached faiss_cpu-1.8.0-cp311-cp311-macosx_11_0_arm64.whl.metadata (3.6 kB)
Collecting packaging
  Using cached packaging-24.1-py3-none-any.whl.metadata (3.2 kB)
Using cached numpy-2.0.0-cp311-cp311-macosx_14_0_arm64.whl (5.2 MB)
Using cached faiss_cpu-1.8.0-cp311-cp311-macosx_11_0_arm64.whl (3.1 MB)
Using cached packaging-24.1-py3-none-any.whl (53 kB)
Installing collected packages: packaging, numpy, faiss-cpu
Successfully installed faiss-cpu-1.8.0 numpy-2.0.0 packaging-24.1
∇ python
Python 3.11.8 (main, Jun  7 2024, 13:22:20) [Clang 15.0.0 (clang-1500.3.9.4)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import faiss

A module that was compiled using NumPy 1.x cannot be run in
NumPy 2.0.0 as it may crash. To support both 1.x and 2.x
versions of NumPy, modules must be compiled with NumPy 2.0.
Some module may need to rebuild instead e.g. with 'pybind11>=2.12'.

If you are a user of the module, the easiest solution will be to
downgrade to 'numpy<2' or try to upgrade the affected module.
We expect that some modules will need time to support NumPy 2.

Traceback (most recent call last):  File "<stdin>", line 1, in <module>
  File "/Users/pd/utils/scratch/.venv/lib/python3.11/site-packages/faiss/__init__.py", line 16, in <module>
    from .loader import *
  File "/Users/pd/utils/scratch/.venv/lib/python3.11/site-packages/faiss/loader.py", line 98, in <module>
    from .swigfaiss import *
  File "/Users/pd/utils/scratch/.venv/lib/python3.11/site-packages/faiss/swigfaiss.py", line 10, in <module>
    from . import _swigfaiss
AttributeError: _ARRAY_API not found
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Users/pd/utils/scratch/.venv/lib/python3.11/site-packages/faiss/__init__.py", line 16, in <module>
    from .loader import *
  File "/Users/pd/utils/scratch/.venv/lib/python3.11/site-packages/faiss/loader.py", line 98, in <module>
    from .swigfaiss import *
  File "/Users/pd/utils/scratch/.venv/lib/python3.11/site-packages/faiss/swigfaiss.py", line 10, in <module>
    from . import _swigfaiss
ImportError: numpy.core.multiarray failed to import