Peter wrote: > Well you could just do:
z = {a: b for b in (transform(bi) for bi in bs) for a in as_} That works, but I prefer the implicit nesting of a sequence of "comp_for" expressions to a the nested generator. On Wed, May 30, 2018 at 2:16 PM Chris Angelico <ros...@gmail.com> wrote: > On Thu, May 31, 2018 at 3:59 AM, Neil Girdhar <mistersh...@gmail.com> > wrote: > > This example shows additional flexibility: > > > > z = {a: transformed_b > > for b in bs > > given transformed_b = transform(b) > > for a in as_} > > > > There is no nice, equivalent := version as far as I can tell. > > True. However, it took me several readings to understand what you were > doing here. I think I actually prefer "for transformed_b in > [transform(b)]" to this syntax, which is saying something. > I feel you. I think of "given" as an assignment that is in front of the expression, just like "for" (in comp_for) is a for loop that is in front, and "if" (in comp_if) is a condition that is in front. > > ChrisA > _______________________________________________ > Python-ideas mailing list > Python-ideas@python.org > https://mail.python.org/mailman/listinfo/python-ideas > Code of Conduct: http://python.org/psf/codeofconduct/ > > -- > > --- > You received this message because you are subscribed to a topic in the > Google Groups "python-ideas" group. > To unsubscribe from this topic, visit > https://groups.google.com/d/topic/python-ideas/keaR3FudcwQ/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > python-ideas+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. >
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