PYTHON setup.py build_ext --inplace

PYTHON -c "import a"

######## setup.py ########

from Cython.Build.Dependencies import cythonize

import Cython.Compiler.Options

Cython.Compiler.Options.cimport_from_pyx = True

from distutils.core import setup

setup(

  ext_modules = cythonize("*.pyx"),

)

######## a.pyx ########

from b cimport Bclass, Bfunc, Bstruct, Benum, Benum_value, Btypedef, Py_EQ, Py_NE

cdef Bclass b = Bclass(5)

assert Bfunc(&b.value) == b.value

assert b.asStruct().value == b.value

cdef Btypedef b_type = &b.value

cdef Benum b_enum = Benum_value

cdef int tmp = Py_EQ

#from c cimport ClassC

#cdef ClassC c = ClassC()

#print c.value

######## b.pyx ########

from cpython.object cimport Py_EQ, Py_NE

cdef enum Benum:

    Benum_value

cdef struct Bstruct:

    int value

ctypedef long *Btypedef

cdef class Bclass:

    cdef long value

    def __init__(self, value):

        self.value = value

    cdef Bstruct asStruct(self):

        return Bstruct(value=self.value)

cdef long Bfunc(Btypedef x):

    return x[0]

######## c.pxd ########

cdef class ClassC:

    cdef int value