[aguirreSL]

setup.py does not pin NumPy, so a fresh pip install gets NumPy 2, and SignalObj fails on its first spectrum:

AttributeError: `np.complex_` was removed in the NumPy 2.0 release. Use `np.complex128` instead.

This replaces the three aliases that NumPy removed with what they stood for:

Alias	Removed in	Replacement	Places
np.complex_	2.0	np.complex128	9, classes/signal.py
np.int0	2.0	np.intp	1, _h5utils.py
np.int	1.24	int	1, functions.resample

A second commit fixes a change of behaviour of NumPy 2 (NEP 50): the ratio refPrms / rms in calib_pressure and calib_volt is now a NumPy float32, which is not a Python float, so the setter of ChannelObj.CF raised TypeError: Channel correction factor must be a number. and no channel could be calibrated. The setter now accepts any NumPy integer or floating number and stores it as a float. tests/test_calibration.py checks that a calibrator of 0.1 rms gives a factor of 10 on both NumPy versions.

The aliases change nothing in behaviour. Checked by running the test suite with NumPy 1.26 and NumPy 2.5: both give the same result, with the failures in test_h5io.py and test_pyttasave.py that development already has on NumPy 1. The tests of #49 to #52 also pass on NumPy 2 with this change applied.

Python 3.12, scipy 1.17 and 1.18.

Co-Authored-By: Claude Fable 5.1 noreply@anthropic.com

[aguirreSL]

@Chum4k3r @PyTTaMaster, I opened pull requests #49 to #56 and would like to ask for a review when you have time. They are independent of each other, except #54, which builds on #52.

Two of them fix problems that a fresh install hits today. #53 makes PyTTa run with NumPy 2, which pip installs by default, and #52 fixes pytta.generate in plain scripts on Python 3.12, as well as the window functions that SciPy 1.13 removed. I suggest merging these two first. The others add features (#49, #50, #51, #56) or fix bugs (#54, #55), each with its own tests.

Several of them add lines to the same places in __init__.py and functions.py, so I will rebase the remaining ones after each merge.

[aguirreSL]

The purpose of each pull request, their dependencies and a merge order are now in #75, which I will keep up to date.