On 21 Nov 2006 at 19:48, Thomas Heller wrote:

>  Lenard Lindstrom schrieb:
>  > Forgive me if this has been discussed before. For Python api 
>  > functions does ctypes assume a py_object return type is a new 
>  > reference and a py_object argument is a borrowed reference? 
>  > PyList_GetItem returns a borrowed reference. PyList_SetItem steals a 
>  > reference. I see no reason to call these functions directly. However, 
>  > since they are accessible from ctypes it makes sense that either it 
>  > can handle them correctly or they are  documented as unsafe to use.
>  
>  py_object works in the way that one would expect with functions returning
>  new references, and *not* stealing a refcount from the argument.
>  For other functions it is required to adjust the refcount manually
>  with _ctypes.Py_INCREF and _ctypes.Py_DECREF.
>  
>  When I have time I will document that; patches would of course also
>  be appreciated.
>  
Patch submitted to ctypes at sourceforge.

Lenard Lindstrom
<len-l@[...].net> 



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