Unable to run pipx version: "ValueError: numpy.dtype size changed, may indicate binary incompatibility."

[zt64]

Expected Behavior

urh should launch the GUI.

Actual Behavior

Traceback (most recent call last):
  File "/home/psi/.local/bin/urh", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/home/psi/.local/share/pipx/venvs/urh/lib/python3.12/site-packages/urh/main.py", line 105, in main
    import urh.cythonext.signal_functions
  File "src/urh/cythonext/signal_functions.pyx", line 1, in init urh.cythonext.signal_functions
ValueError: numpy.dtype size changed, may indicate binary incompatibility. Expected 96 from C header, got 88 from PyObject

Steps To Reproduce

1. Install urh with pipx install urh
2. Run urh in the terminal
3. Error occurs

Platform Specifications

• OS: Arch Linux
• URH version: 2.9.6
• Python version: 3.12.7
• Installed via pipx

[andynoack]

Hey, this seems to be a common issue. Downgrading the numpy version seems to be the way to go, see e.g. Sinaptik-AI/pandas-ai#1251

[denizea]

Following helped me to install: pipx install urh --pip-args="numpy==1.26.4"

[jopohl]

Thanks for reporting. Fixed with v2.9.8, now a regular pipx install urh works.