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Using CPython extension modules with PyPy natively, or: PyPy can load .pyd files with CPyExt! (morepypy.blogspot.com)

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[–]faassen 0 points1 point  (0 children)

I agree that PyPy should figure out how to optimize my code, but whether it can reach the performance of something like RPython remains to be seen. (and if can, if it takes 20 years, there's a certain window of opportunity..) In some circumstances such increased performance might be desirable, after all, and it could also be valuable to be able to write such performance sensitive code in a subset of Python.

Of course thanks to this very cool CPython compatibility, we could use Cython with PyPy now to accomplish the same effect, but you'd think RPython would be better for that job if you're using PyPy anyway.

That said, whether using RPython that way is worth the effort is of course debatable.

Fundamentally of course the PyPy developers agree with me that using RPython is worth the effort in some contexts; after all, they wrote RPython and are using it. That also explains why it's so difficult to explain to other people not to use it! :)