Issue with python example xrlexample5.py (numpy: int64 vs int)

[delorytheape]

Hi,

I have just attempted to use xraylib with Python and have run into a problem with the example xrlexample5.py The example throws an exception at line 67, while attempting to call xraylib.AtomicNumberToSymbol(Z[0]), where Z=np.array([26]) The output is

Traceback (most recent call last):

File "blah/Downloads/xraylib/example/xrlexample5.py", line 67, in \<module>

symbol = xraylib.AtomicNumberToSymbol(Z[0]) File "blah/miniconda3/envs/py3/lib/python3.10/site-packages/xraylib.py", line 1037, in AtomicNumberToSymbol return _xraylib.AtomicNumberToSymbol(Z) TypeError: in method \'AtomicNumberToSymbol\', argument 1 of type \'int\'

ie. It looks like AtomicNumberToSymbol is expecting an int (but getting a numpy.int64).

To confirm this, I,

• found a clean machine (Ubuntu 20.04),
• installed xraylib using conda (> conda install -c conda-forge xraylib),
• opened a python shell (python 3.9.15)

• typed the following commands

  >>> import numpy as np >>> import xraylib >>> xraylib.__version__ '4.1.2' >>> xraylib.AtomicNumberToSymbol(26) 'Fe' >>> type(26) \<class 'int'> >>> xraylib.AtomicNumberToSymbol(np.array([26])[0]) Traceback (most recent call last): File "", line 1 in File "~/miniconda3/envs/py3/lib/python3.9/site-packages/xraylib.py", line 1037, in AtomicNumberToSymbol return _xraylib.AtomicNumberToSymbol(Z) TypeError: in method 'AtomicNumberToSymbol', argument 1 of type 'int' `>>> type(np.array([26])[0]) \<class 'numpy.int64'>

[tschoonj]

Hi @delorytheape,

This bug was fixed in the 4.1.3 release. You may want to update your conda environment.

[delorytheape]

Ok - thanks.