Re: [Jython-users] ctypes in trunk

[Nicholas R. <nj...@il...>]

In article <71B...@gm...>,
 josu jugo <jos...@gm...> wrote:

> >>> libc = ctypes.CDLL("libc.dylib")
> >>> print libc.strlen("hello")               
> 
> NotImplementedError: variadic functions not supported yet;  specify a 
> parameter list
>  
> I don't know what is the mean of this error. Is it possible to use ctypes in 
> some examples  in this moment?

What ctypes is trying to tell you is that it doesn't know what the 
argument types for strlen are.  So you need to tell it:

>>> libc.strlen.argtypes = [ctypes.c_char_p]
>>> libc.strlen('hello')
5
-- 
Nicholas Riley <nj...@il...>