I have a largish cython module that outputs the following warnings
every time I import the compiled module.
__main__:1: RuntimeWarning: numpy.dtype size changed, may indicate
binary incompatibility
__main__:1: RuntimeWarning: numpy.flatiter size changed, may indicate
binary incompatibility
Is this something I should worry about? I've traced this warning gets
generated when a `cimport numpy as np` line is processed in my module.
When I comment out that line I don't get any warning. To recreate
this error I've created a cython with only that line as follows:
numpy_test.pyx:
cimport numpy as np
A barebones setup in `setup.py`:
from distutils.core import setup
from distutils.extension import Extension
from Cython.Distutils import build_ext
setup(name='numpy_test',
version='tip',
cmdclass={'build_ext': build_ext},
ext_modules=[Extension(name="numpy_test", sources=['numpy_test.pyx'])]
)
Then I do a local build like this:
python setup.py build
cd into the build directory:
cd build/lib.linux-x86_64-2.6/
verify the .so is there:
$ ls
numpy_test.so
and import it and get the runtime warning:
$ python -c "import numpy_test"
-c:1: RuntimeWarning: numpy.dtype size changed, may indicate binary
incompatibility
-c:1: RuntimeWarning: numpy.flatiter size changed, may indicate binary
incompatibility
I'm running 64 bit Ubuntu 10.04, Python 2.6.6, and Cython 0.15.1.
Any help would be greatly appreciated!
Rich
--
Richard P. Sharp Jr.
Lead Software Developer
Natural Capital Project
Stanford University, U Minnesota, TNC, WWF
371 Serra Mall
Stanford, CA 94305
http://www.stanford.edu/~rpsharp/
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