[Python-3000] Dict literal bytecode

[Terry Reedy]

"Greg Ewing" <greg.ewing at canterbury.ac.nz> wrote in message 
news:47ED70D2.6030509 at canterbury.ac.nz...
Marcin ‘Qrczak’ Kowalczyk wrote:
> What about lists? I guess (haven't checked) that they are made like
> tuples.

I always thought they were built one item at a time,
but I was wrong (see below). So there doesn't seem to
be much logic or consistency here at all.

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Would it be possible to consistently build all such builtin collections in 
bunches of say 256 items (or 128 pairs)?  Such a 'compromise' between the 
efficient 'all-at-once' and the safer 'one-at-a-time' methods would 
effectively  be 'all-at-once' for perhaps 99% of literals without imposing 
arbitrary limits on extreme cases.

tjr