On 2017-08-21 03:00, Steve D'Aprano wrote: > On Fri, 18 Aug 2017 04:55 pm, Marko Rauhamaa wrote: > >> Is a Python implementation >> allowed to parallelize or otherwise reorder the evaluation loop? > > No. > [snip] Well, I suppose an implementation _could_ parallelise, or whatever, _provided that_ it gave the same result.