[Numpy-discussion] Calling routines from a Fortran library using python

David Cournapeau david@silveregg.co...
Thu Feb 18 04:21:03 CST 2010

Nils Wagner wrote:
> On Thu, 18 Feb 2010 18:32:18 +0900
>   David Cournapeau <david@silveregg.co.jp> wrote:
>> Nils Wagner wrote:
>>> Hi all,
>>> I have a static  library (*.a) compiled by gfortran but 
>>> no 
>>> source files.
>>> How can I call routines from that library using python ?
>> Is there any kind of interface (.h, etc...) ? If this is 
>> a proprietary 
>> library, there has to be something so that it can be 
>> called from C, and 
>> anything that can be called from C can be called from 
>> python. If you 
>> don't know at least the functions signatures, it will be 
>> very difficult 
>> (you would have to disassemble the code to find how the 
>> functions are 
>> called, etc...).
>> cheers,
>> David
> Hi David,
> you are right. It's a proprietary library.
> I found a header file (*.h) including prototype 
> declarations of externally callable procedures.
> How can I proceed ?

Exactly as you would do for a C library (ctypes, cython, by hand, swig, 
etc...). Once you have the header (plus the C->Fortran ABI convention, 
which depend on your compilers and platforms), it is exactly as calling 
a C function in a C library,



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