April 20, 2018
9:04 p.m.
On Sat, Apr 21, 2018 at 6:59 AM, Guido van Rossum <guido@python.org> wrote:
Does the PEP currently propose to *allow* that horrible example? I thought Tim Peters successfully pleaded to *only* allow a single "NAME := <expr>". You don't have to implement this restriction -- we know it's possible to implement, and if specifying this alone were to pull enough people from -1 to +0 there's a lot of hope!
I don't see much value in restricting the assignment target to names only, but if that's what it takes, it can be restricted, at least initially. As to chaining... well, since the entire construct (target := expr) is an expression, it can be used on the right of :=, so short of outright forbidding it, there's not a lot to be done. ChrisA