[Dream] A meta-wrapper module to interface any C dynamic library

Thomas Heller theller at python.net
Fri Jul 4 13:33:27 CEST 2003


"Francesco Bochicchio" <bockman at virgilio.it> writes:

> Hi all,
>
> I was wondering if it would be possible to make a module which allows to
> do something like that:
>
> 	import c_interface
> 	math_lib = c_interface.load('math.so', 'math.h' )
> 	sin_f = math_lib.get_function('sin')
> 	print "sin(3.14) = %f" % sin_f (3.14)
>
> The idea would be to make a module that allows to use any C dynamic
> library ( I used an hypothetical math.so only as example ) without 
> the need of a specific wrapper module.
>
> I've given some thought to this idea, but I was blocked by the theoric (?)
> impossibility to correctly call a C function without knowing its prototype
> at compile time.
>
> Did anybody ever attempted to do something like this?

Yes, it already exists (to some degree).

http://starship.python.net/crew/theller/ctypes/

Thomas




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