NumPy issues

[aapohaavisto]

Some files in the package were compiled with numpy 1.x.x and it is causing issues when using with numpy 2.x.x. Which files do need to be recompiled with numpy 2.x.x to get the code working again?

[jameskermode]

This is a good point. You'll have to build all of quippy yourself if you want to use Numpy 2. See the main README for comprehensive compilation instructions.

[jameskermode]

I created #701 to build for numpy 2.x with Python 3.12 and numpy 1.x on older Python. If it works wheels should show up there shortly. We can do a new release once this has been tested a bit.

[jameskermode]

Ah, I was actually wrong about this, wheels are actually built with numpy 2.x and require it a runtime. I'll update the PR accordingly to make this explicit in the dependencies.