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

[MRAB]

On 2018-04-13 16:13, Guido van Rossum wrote:
> Regarding the precedence of :=, at this point the only acceptable 
> outcome for me is one where at the statement level, := and = can be used 
> interchangeably and will have the same meaning (except probably we 
> wouldn't allow combining both in a chained assignment). Because then we 
> can say "and you can use assignment in expressions too, except there you 
> must use := because = would be too easily confused with ==".
> 
> Ideally this would allow all forms of = to be replaced with :=, even 
> extended structure unpacking (a, b, *c := foo()).
> 
+1

It would be confusing to have 2 forms of assignment which look alike but 
with different precedences.