[Python-Dev] The new and improved PEP 572, same great taste with 75% less complexity! (original) (raw)

Jim F.Hilliard d.f.hilliard at gmail.com
Thu Apr 26 12:19:43 EDT 2018


FWIW There's an existing issue (bpo 29652 <https://bugs.python.org/issue29652>) for the order of evaluation in dict-comps.

Best Regards,

Jim Fasarakis Hilliard

On Thu, Apr 26, 2018 at 7:06 PM, Chris Angelico <rosuav at gmail.com> wrote:

On Fri, Apr 27, 2018 at 2:02 AM, Guido van Rossum <gvanrossum at gmail.com> wrote: > Maybe the order for d[k] = v should also be reconsidered?

If so, it would be something like: 1) Evaluate d 2) Evaluate k 3) Evaluate v 4) Call d.setitem(k, v), via slots etc In a vacuum, I don't have a problem with that. But I suspect that it'd break more code than the comprehensions changes do. ChrisA


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