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.

Thomas


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