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

[Ravi Lanka]

I don't know your particular situation, but, Instead of using 
C_function(..), can't you use C_fun() in p2 and p3.
i.e.,
In p2.pyx:

    import p1
    retValue = p1.C_fun( i )
   ...

Ravi

Tomasz Primke wrote:

>>If you want to have the literal equivalent of a C include, you can use:
>>
>>    include "p1.pyx"
>>
>>Wherever you want to use that function.
>>    
>>
>
>I'm not sure, what do you mean by "literal equivalent", so I'll try to 
>describe what I want to achieve.
>
>I have a Pyrex module, called p1 (p1.pyx). I can "compile" it with pyrexc, 
>so I'll get p1.c file. The file is then used to make a Python extension 
>module, with my setup.py file - so I get the p1.so file (I work on a 
>GNU/Linux box).
>
>Now: I have also other Pyrex modules, called p2 (p2.pyx), p3 (p3.pyx), and 
>so on. I want to use that C_function function, defined in the p1 module, in 
>my p2.pyx, p3.pyx (and so on) files (modules). In general: p2, p3 modules 
>should use some functions from the p1 module. Or in another words: I need 
>my modules to *share* some C (Pyrex) functions.
>
>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 )
>
>
>
>And I was able to compile it and make Python modules (p1.so and p2.so), but 
>when I did:
>
>  
>
>>>>import p2
>>>>        
>>>>
>
>I got some message about unresolved symbols or something... In general - 
>Python wasn't able to find out, that the p1.so shared library should be 
>also loaded (because it has the needed functionality).
>
>
>I realize, that I could do just:
>
>#include "p1.pyx"
>
>
>but wouldn't it cause code duplication in p2.so file? In the real life my 
>modules will be much more complicated, so the code duplication is not a 
>good idea...
>
>
>Best regards,
>
>	Tomek
>
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