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PYTHON setup.py build_ext -i
PYTHON main.py
############# setup.py ############
from distutils.core import setup
from Cython.Build import cythonize
setup(ext_modules = cythonize('cimport_numpy.pyx'))
############# numpy.pxd ############
# A fake Numpy module. This defines a version of _import_array
# that always fails. The Cython-generated call to _import_array
# happens quite early (before the stringtab is initialized)
# and thus the error itself handling could cause a segmentation fault
# https://github.com/cython/cython/issues/4377
cdef extern from *:
"""
#define NPY_FEATURE_VERSION
static int _import_array(void) {
PyErr_SetString(PyExc_ValueError, "Oh no!");
return -1;
}
"""
int _import_array() except -1
############# cimport_numpy.pyx ###########
cimport numpy
############# main.py ####################
try:
import cimport_numpy
except ImportError as e:
print(e)
else:
assert(False)
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