Stephen J. Turnbull wrote:
Benjamin Peterson writes:
> > I suppose there's no way to get the compiler to both make "for x in d"
> > work as above, and make "for k, v in d" be equivalent to Python 2's
> > "for k, v in d.iteritems()"?
it would change the meaning of currently correct
programs, so it's a non-starter.
Maybe what's wanted is a function analogous to enumerate() for
mappings instead of sequences. Picking a semi-arbitrary name
for now:
for k, v in tabulate(d):
...
It could be special-cased to recognise dicts and do the appropriate
thing for the Python version concerned. If it doesn't recognise the
type, it would fall back to a generic implementation like
for k in d:
v = d[k]:
...
--
Greg
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