[Pyrex] How to use C functions in many Pyrex files?

[Lenard Lindstrom]

On 5 Apr 2006 at 21:04, Tomasz Primke wrote:

[snip]
> 
> I have already tried:
> 
> --- p1.pyx file ---
> cdef public void C_function( int i ):
>   print "i =", i
> 
> --- p2.pyx file ---
> #include "p1.pxi"
> 
> def Cfun( int ):
>   C_function( i )
> 
--- p2.pyx file ---
include "p1.pxi"
import p1

def Cfun( int i ):
  C_function( i )

Build p1.pyx as a normal pyrex module. p2 is more tricky, as the 
linker needs information on p1. This is the setup.py file I used to 
build p2 with VC on Window. GCC needs something different.

from distutils.core import setup
from distutils.extension import Extension
from Pyrex.Distutils import build_ext

setup(
  name = 'p2',
  ext_modules=[ 
    Extension("p2",       ["p2.pyx"],
              library_dirs=["./build/temp.win32-2.3/Release"],
              libraries=["p1"]),
    ],
  cmdclass = {'build_ext': build_ext}
)

And finally:

>>> import p2
>>> p2.Cfun(12)
i = 12
>>>

Lenard Lindstrom
<len-l at telus.net>