There's a (much shorter) proposal for a more explicit parallelism
construct at
http://wiki.cython.org/enhancements/parallelblock
This is a little more verbose for the simplest case, but makes the
medium-cases that needs work buffers much simpler, and is also more
explicit and difficult to get wrong.
I am not sure myself which one I prefer of this and prange.
Justification for Cython-specific syntax: This is something that is
really only useful if you can release the GIL *outside* of the loop. So
I feel this is an area where a custom Cython solution is natural, sort
of like "cdef extern", and the buffer access.
Since a similar pure-Python solution is rather useless, I also think
there's less incentive for making something that works well in
pure-Python mode.
Dag Sverre
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