Proposed new syntax

[Paul Rubin]

Marko Rauhamaa <marko at pacujo.net> writes:
> The question is, is it bad style—or even an error—to rely on the
> execution order of the comprehension loops? 

Bad style: IMO, yes, most of the time.  I've made use of it at
particular times.  If it's done in an obscure way it at least
deserves a code commment.

Error: no, I think the language spec is clear.  It's not like the
situation of people depending on reference counting to free resources
predictably.  Use the 'with' statement for that.

> Is a Python implementation allowed to parallelize or otherwise reorder
> the evaluation loop?

No.