[IronPython] PyPy meets Jython (could meet IronPython too?)

[Michael Foord]

Antonio Cuni wrote:
> Michael Foord wrote:
>
>> It would be great to see this as a separate project (pyspec?) so that 
>> CPython, IronPython, PyPy and Jython developers can work on it.
>
> yes, that was my idea when I proposed it.
>
>> Of course for maximum platform compatibility it should be based on 
>> unittest...
>>
>> :-)
>
> I guess there is no chance to get pypy involved in such a project 
> without using py.test :-).
>
>

I doubt there is much chance of getting CPython developers interested if 
it is not based on a standard library module.

There is also no py.test implementation for Jython or IronPython.

I realise there is an effort underway to port py.test to Jython, but if 
py.test uses sys.settrace or stack frame magic then it will be a *long* 
time before it can run on IronPython.

A 'cross-platform' testing approach that relies on platform dependent 
implementation details, and isn't used by the core CPython developers 
seems to be *much* less interesting or useful in my opinion.

Michael Foord

>> It would probably be more of a problem for *them* to depend on the 
>> PyPy ctypes implementation though. :-(
>
> I don't know Microsoft policies, it would be a real pity if that would 
> not be possible because of vague legal issues.
> But I think it would be possible to integrate it at least in fepy.
>
>> Personally I think that a Python 2.5 implementation (IronPython 2) is 
>> incomplete without ctypes of course...
>
> +1
>
> Moreover, having a working ctypes for all the four major python 
> implementation would make it THE standard way to write extension 
> modules, and the whole community would benefit from this.
>
>> Incidentally, it would probably be possible to implement _rawffi for 
>> IronPython in pure Python - building on the dynamic platform invoke 
>> work that Seo started for ctypes.
>
> yes, but then I'm not sure about performances. Still, a slower ctypes 
> is much better than no ctypes :-).
>
> ciao,
> Anto
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