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PYTHON setup.py build_ext --inplace
######## setup.py ########
from Cython.Build import cythonize
from Cython.Distutils.extension import Extension
import sys
sys.path.insert(0, "path")
ext_modules = [
Extension("a", ["a.pyx"]),
Extension("b", ["b.pyx"]),
Extension("c", ["c.pyx"]),
Extension("d", ["d.pyx"]),
]
ext_modules = cythonize(ext_modules, include_path=["include"])
######## a.pyx ########
# Implicit cimport looking in include_path
cdef my_type foo
######## include/a.pxd ########
ctypedef int my_type
######## b.pyx ########
# Explicit cimport looking in sys.path
from b cimport *
cdef my_type foo
######## path/b.pxd ########
ctypedef int my_type
######## c.pyx ########
# Implicit cimport NOT looking in sys.path
######## path/c.pxd ########
+++syntax error just to show that this file is not actually cimported+++
######## path/numpy/__init__.pxd ########
# gh-2905: This should be found before Cython/Inlude/numpy/__init__.pxd
ctypedef int my_type
######## d.pyx ########
cimport numpy
cdef numpy.my_type foo
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