[Python-Dev] chained assignment weirdity

[Serhiy Storchaka]

On 07.11.12 17:12, Nick Coghlan wrote:
> Since you've indicated the implementation is in the wrong here and you
> also want to preserve opcode semantics, I think Skip's patch is
> correct, but also needs to be applied to dict comprehensions (now we
> have them). The extra bytecode is only ROT_TWO, which is one of the
> cheapest we have kicking around :)

Not only to dict comprehensions, but also to item assignments.  It will 
be weird if a dict comprehension and a plain loop will be inconsistent.