[Python-ideas] PEP 572: Assignment Expressions (post #4)

[Chris Angelico]

On Fri, Apr 13, 2018 at 1:00 PM, Thautwarm Zhao <yaoxiansamma at gmail.com> wrote:
> I do support this feature, but now I'm worried about the meaning of ':=', it
> seems to be a lazy assignment in some degree. I'm not sure using ':=' is
> proper here.

What do you mean by "lazy"? The assignment happens at the exact point
that it is reached. Is there another language that uses := to mean
something where the assignment doesn't happen until later? Or where
the expression is assigned unevaluated, and is evaluated later? What
part of it is lazy?

ChrisA