[Python] pip install pyspectra does not find existing numpy installation

I get the error message Getting requirements to build wheel did not run successfully when trying to install the pyspectra module with pip on a Windows machine. The last line of the traceback tells me ModuleNotFoundError: No module named 'numpy'. The strange thing is: numpy is installed and running perfectly fine when I launch python and import it with import numpy as np.

This is the output on the Windows command line:

# Create and activate virtual environment
C:\user\...\Desktop>python -m venv venv
C:\user\...\Desktop>venv\scripts\activate

# Import numpy (to make sure it is installed)
(venv) C:\user\...\Desktop>py -m pip install numpy

# Import pyspectra
(venv) C:\user\...\Desktop>py -m pip install pyspectra
Collecting pyspectra
Using cached pyspectra-0.0.1.2-py3-none-any.whl.metadata (12 kB)
Requirement already satisfied: numpy in c:\users\...\venv\lib\site-packages (from pyspectra) (2.1.2)
Collecting pandas (from pyspectra)
Using cached pandas-2.2.3-cp312-cp312-win_amd64.whl.metadata (19 kB)
Collecting spc-spectra (from pyspectra)
Using cached spc_spectra-0.4.0.tar.gz (8.6 kB)
Installing build dependencies ... done
Getting requirements to build wheel ... error
error: subprocess-exited-with-error

× Getting requirements to build wheel did not run successfully.
│ exit code: 1
╰─> [24 lines of output]
Traceback (most recent call last):
[...]
File "C:\Users\...\AppData\Local\Temp\pip-install-v_qa0rxl\spc-spectra_a351371d52ef45edbd585ef2843e5c1e\spc_spectra\spc.py", line 10, in <module>
import numpy as np
ModuleNotFoundError: No module named 'numpy'
[end of output]


Could this be a dependency issue between pyspectra 0.0.1.2 and numpy 2.1.2?
Any input on how to solve it is very appreciated.

Edit: I am running Python 3.12.5 and pip 24.2 in the virtual environment. This should be fine as PySpectra requires Python >= 3.6 according to its setup.py file (https://github.com/OEUM/PySpectra/blob/main/setup.py).

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