[Python-ideas] Reuse "for" to express "given"

[Serhiy Storchaka]

24.05.18 18:54, Alexander Belopolsky пише:
> I have read most of the PEP 572 related threads, but I don't think I've 
> seen this idea.  As many other people mentioned, Python already allows a 
> trick to introduce local bindings in generator expressions and list 
> comprehensions.  This can be achieved by adding a "for var in [<expr>]" 
> clause.  I propose to make "for var = <expr>" have the same effect 
> as "for var in [<expr>]".

It was discussed before (at least in the context of comprehensions), and 
was rejected because in some other popular languages `for var = <expr>` 
is the same as `for var in <expr>` in Python.