Support Numpy 2.0

NumPy 2.0.0 is the de facto standard and BornAgain must be adapted to use the new versions as well as the older ones still in use.

All installers and packages must be tested against Numpy 2.

Release notes: https://numpy.org/doc/stable/release/2.0.0-notes.html

added Python essential functionality release-critical labels

assigned to @a.nejati

Priority is making the new release compatible with NumPy2. Should backcompatibility with NumPy1 turn out to be difficult, then we ought to discuss whether it's worth the extra effort.

Due to the discarding of Numpy C-API, our packages & installers should be compatible with all available Numpy versions, by design.

We just need to test the installars & packages to be sure.

Note:

A module that was compiled using NumPy 1.x cannot be run in NumPy 2.1.3 as it may crash. To support both 1.x and 2.x versions of NumPy, modules must be compiled with NumPy 2.0.

The packages of Python platforms on all the CI-machines should be hence updated.

Note: Numpy 2 is available only for Python >= 3.9.

Tests

• Windows:

  • Built BornAgain with Python 3.9 and 3.10 with Numpy 2 and tested successfully the Python package and installer with the standard Python installation.
  • Tested with Conda with Python 3.10 and Numpy 1.24.3.

• Linux:

  • BornAgain Python package build with Python 3.10 + Numpy2 tested successfully on a clean Ubuntu 22.4 with default Python 3.10 and Numpy 1.24.2.
  • BornAgain GUI and Python package build with Python 3.10 + Numpy 1.24 tested successfully on a clean Ubuntu 22.4 (LTS) with default Python 3.10 and Numpy 2 in virtual-environment (venv).
  • BornAgain GUI and Python package build with Python 3.10 + Numpy 1.24 tested successfully on a clean Ubuntu 24.04 (LTS) with Python 3.10.15 installed via pyenv.

changed milestone to %v22

Further tests indicate that BornAgain is now compatible with Numpy 2.0.

closed

Excellent news, thanks!