On 27 Feb 2014 10:16, "Vinay Sajip" <vinay_sa...@yahoo.co.uk> wrote: > > > > PEP 425 explicitly covers that. > > It says "The version is py_version_nodot. CPython gets away with no dot, but if one is needed the underscore _ is used instead. PyPy should probably use its own versions here pp18, pp19". > > The "probably" leaves some room for doubt as to what exactly is meant: both wheel and distlib use py_version_nodot, and the last sentence I quoted looks provisional rather than definitive.
That's because API/ABI versioning is technically up to the individual implementations. The PEP only mandates particular behaviour for CPython and the implementation independent tags. If if you want a definitive answer on that, ask the PyPy devs to write one up. I would have preferred to mandate behaviour based on sys.implementation, but that still wouldn't have covered 2.x. Cheers, Nick. > > Regards, > > Vinay Sajip
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