Error5 reports
Fix ValueError
in NumPy
✅ Solution
ValueError in NumPy usually arises from providing a function with an argument of the correct data type but an inappropriate value. To fix it, carefully inspect the function's documentation to ensure all argument values fall within acceptable ranges or fulfill required conditions (e.g., array shapes must be compatible, data within allowed limits, or non-empty inputs when required). Adding checks with `if` statements to validate arguments before passing them to the NumPy function helps prevent the error.
Related Issues
Real GitHub issues where developers encountered this error:
BUG: `np.testing.assert_allclose` raises `ValueError` when using `timedelta64` with `atol`Dec 5, 2025
BUG: ndarray.__dlpack__ should raise `BufferError` instead of `ValueError` on unsupported `dl_device` valuesDec 1, 2025
BUG: ``numpy.convolve`` raises misleading ``ValueError`` on empty inputs due to internal variable swappingNov 20, 2025
ENH: `f2py.Expr.parse` unmatched parantheses causes `RecursionError` and not helpful `ValueError`Nov 20, 2025
BUG: Invalid `astype` conversion raises SystemError instead of ValueError in 2.4.0 nightlyOct 8, 2025
Timeline
First reported:Oct 8, 2025
Last reported:Dec 5, 2025