ValueError: numpy.dtype size changed, may indicate binary incompatibility. Expected 96 from C header, got 88 from PyObject

[smidm]

The pypi supplied wheel doesn't work with numpy 2.2.2

python -c 'from xtcocotools.coco import COCO'

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/matej/.virtualenvs/tempenv-68902596829d9/lib64/python3.10/site-packages/xtcocotools/coco.py", line 58, in <module>
    from . import mask as maskUtils
  File "/home/matej/.virtualenvs/tempenv-68902596829d9/lib64/python3.10/site-packages/xtcocotools/mask.py", line 3, in <module>
    import xtcocotools._mask as _mask
  File "xtcocotools/_mask.pyx", line 1, in init xtcocotools._mask
ValueError: numpy.dtype size changed, may indicate binary incompatibility. Expected 96 from C header, got 88 from PyObject

reinstalling from source fixes the problem:

pip uninstall xtcocotools
pip install --no-binary xtcocotools xtcocotools

[delaprada]

The pypi supplied wheel doesn't work with numpy 2.2.2

python -c 'from xtcocotools.coco import COCO'

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/matej/.virtualenvs/tempenv-68902596829d9/lib64/python3.10/site-packages/xtcocotools/coco.py", line 58, in <module>
    from . import mask as maskUtils
  File "/home/matej/.virtualenvs/tempenv-68902596829d9/lib64/python3.10/site-packages/xtcocotools/mask.py", line 3, in <module>
    import xtcocotools._mask as _mask
  File "xtcocotools/_mask.pyx", line 1, in init xtcocotools._mask
ValueError: numpy.dtype size changed, may indicate binary incompatibility. Expected 96 from C header, got 88 from PyObject

reinstalling from source fixes the problem:

pip uninstall xtcocotools
pip install --no-binary xtcocotools xtcocotools

Thanks a lot! I solve this problem by reinstall from source.

[Mingrui-Yu]

The pypi supplied wheel doesn't work with numpy 2.2.2

python -c 'from xtcocotools.coco import COCO'

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/matej/.virtualenvs/tempenv-68902596829d9/lib64/python3.10/site-packages/xtcocotools/coco.py", line 58, in <module>
    from . import mask as maskUtils
  File "/home/matej/.virtualenvs/tempenv-68902596829d9/lib64/python3.10/site-packages/xtcocotools/mask.py", line 3, in <module>
    import xtcocotools._mask as _mask
  File "xtcocotools/_mask.pyx", line 1, in init xtcocotools._mask
ValueError: numpy.dtype size changed, may indicate binary incompatibility. Expected 96 from C header, got 88 from PyObject

reinstalling from source fixes the problem:

pip uninstall xtcocotools
pip install --no-binary xtcocotools xtcocotools

This helps me too!

[HuayuChen2004]

After refering to this solution, the original problem is solved but new issues concerning numpy have arisen. I recommend installing numpy<2.0, and this solves all my problems.