[Debichem-devel] Bug#1094717: Bug#1094717: rdkit: FTBFS with numpy 2.x

[Norwid Behrnd]

@Andrius  On a tangent, somewhat prior to the release of NumPy 2.x.y, the
syntax to initialize numpy arrays and name the data type (`dtype`) in question
changed e.g.,

|------------+------------|
| old syntax | new syntax |
|------------+------------|
| np.float   | float      |
| np.int     | int        |
|------------+------------|
| np.obj     | obj        |
|------------+------------|

In consequence, a block like

``` python
###############################################################################
# CONSTANTS AND CONVERSION FACTORS
###############################################################################

b2a = 5.2917721092E-01  # Conversion factor: Bohr -> Angstrom
NA = 6.02214129E+23  # Avogadro number
x_axis = np.array([1.0, 0.0, 0.0], dtype=np.float)  # x axis
y_axis = np.array([0.0, 1.0, 0.0], dtype=np.float)  # y axis
z_axis = np.array([0.0, 0.0, 1.0], dtype=np.float)  # z axis
```

no longer is valid contemporary NumPy.  For a couple of times, this difference
once was _the_ reason why a legacy script (unrelated to RDKit) worked on one
isolated computer, but (no more) on a different computer connected to the web
(and hence routinely updated).  Hence I speculate this might again contribute
here to the present obstacle ahead.

Best,
Norwid