Numpy 2.x breaks htm.SDR

[fcr]

htm.core SDR does not behave correctly with numpy 2.x regardless whether built with numpy 1.x or numpy 2.x

If the attached test program is run with numpy 1.x it prints the correct result for a sparse SDR, namely [609 641 672 704 705 706 738 739 802]

if it is run with numpy 2.x it gives the incorrect result of [609 609 609 609 609 609 609 609 609]
run_numpy_test.py.zip

[ctrl-z-9000-times]

Okay, clearly the time has come for us to support numpy v2.

I think the first step is to upgrade our pybind11 depenency from version 2.10 to at least 2.12 which claims to support numpy-v2.

https://pybind11.readthedocs.io/en/stable/upgrade.html

[ctrl-z-9000-times]

Hi fcr,

I made a branch "numpy-v2" and pull request #1020 which should fix this issue.
Give it a try! Make sure to do a clean build for this branch, I had to uninstall & reinstall the htm.core python package to get it to work.

This turned out to be a very simple fix, I probably should have done it months ago...

[dkeeney]

Thanks ctrl-z-9000-times for taking care of this. I was busy one another project and did not get to it right away. Oh, and thanks fcr for point it out.

[fcr]

Hi @dkeeney ,
I checked the pull request and it works on my Mac.
Thanks for the quick fix.