[Cython] Best way to link in Cython utility code?

[Robert Bradshaw]

On Dec 20, 2008, at 10:21 AM, Lisandro Dalcin wrote:

> Then It would be really easy to implement some ctypes hackery to make
> globally visible the API required for nanny refcounting.

This won't work for the trickiest part, all the temp variables and  
exceptions that need to be handled correctly. On the other hand, the  
external variables can't always be refcounted automatically, because  
the semantics may dictate that the refcounts increase or decrease  
(e.g. inserting into a list).

> The only gotcha is that you would need to "install" this feature
> before importing Cython-generated ext modules, I mean, something
> similar to pyximport, where you have first to import andinstall() it
> for make use of their features...
>
> But a really nice thing about this approach is that you can run in
> with an unmodified Python interpreter, and there is no need to link
> extension modules with especial shared libs or other modules...
>
>
>
> On Sat, Dec 20, 2008 at 1:53 PM, Stefan Behnel  
> <stefan_ml at behnel.de> wrote:
>> Hi,
>>
>> Lisandro Dalcin wrote:
>>> Dag, sorry about my complete ignorance. This refcounting nanny is
>>> supposed to be a tool for Cython developement and testing, or  
>>> rather a
>>> general mechanism for Cython-generated extension modules?
>>
>> It's meant for testing the code Cython generates and making sure  
>> it gets
>> ref-counting right when doing things like assigning Python objects  
>> back and
>> forth between temp variables or (I assume) jumping into exception  
>> handlers
>> or returning from the middle of a function.
>>
>> When Cython gets this right, there shouldn't be any need for such a
>> functionality on the user side (read: no performance impact or the  
>> like).
>>
>> Stefan
>>
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>
>
>
> -- 
> Lisandro Dalcín
> ---------------
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