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PYTHON setup.py build_ext --inplace
######## setup.py ########
from Cython.Build import cythonize
from distutils.core import setup
setup(
ext_modules = cythonize("*.pyx"),
)
######## test.pyx ########
from moda cimport DEFINE_A
from modb cimport DEFINE_B
######## moda.pxd ########
from verbatim cimport DEFINE_ONCE as DEFINE_A
######## modb.pxd ########
from verbatim cimport DEFINE_ONCE as DEFINE_B
######## verbatim.pxd ########
# Check that we include this only once
cdef extern from *:
"""
#ifdef DEFINE_ONCE
#error "DEFINE_ONCE already defined"
#endif
#define DEFINE_ONCE 1
"""
int DEFINE_ONCE
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