[Python-Dev] [Python-checkins] r43041 - python/trunk/Modules/_ctypes/cfield.c

[M.-A. Lemburg]

Thomas Heller wrote:
> Martin v. Löwis wrote:
>> Thomas Heller wrote:
>>> BTW: Is a "porting guide" to make extension modules compatible with 2.5
>>> available somewhere? PEP 353 scratches only the surface...
>> Wrt. ssize_t changes, PEP 353 is meant to be comprehensive. Which
>> particular aspect are you missing?
> 
> I suggest to change this:
> 
>   #if PY_VERSION_HEX < 0x02050000
>   typedef int Py_ssize_t;
>   #endif
> 
> with this:
> 
>   #if (PY_VERSION_HEX < 0x02050000)
>   typedef int Py_ssize_t;
>   #define lenfunc inquiry
>   #define readbufferproc getreadbufferproc
>   #define writebufferproc getwritebufferproc
>   #define segcountproc getsegcountproc
>   #define charbufferproc getcharbufferproc
>   #define ssizeargfunc intargfunc
>   #define ssizessizeargfunc intintargfunc
>   #define ssizeobjargproc intobjargproc
>   #define ssizessizeobjargproc intintobjargproc
>   ... more defines
>   #endif
> 
> Maybe a complete list of defines needed can be given?
> 
> Then, from only reading the PEP without looking up the sources,
> it is not clear to me what the PY_SIZE_T_CLEAN definition does.
> 
> Finally, the format codes to use for Py_ssize_t arguments passed to PyBuild_Value,
> PyString_FromFormat, PyObject_CallFunction (and other functions) are not mentioned at all.

Since this change is going to affect a lot of 3rd party extensions,
I'd also like to see a complete list of public APIs that changed and
how they changed (including the type slots)

Thanks,
-- 
Marc-Andre Lemburg
eGenix.com

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