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Slicing beyond list -- bug or featurette?

Konrad Hinsen hinsen at cnrs-orleans.fr
Wed Jul 7 04:16:09 EDT 1999 
Pierre Fortin <pfortin at cisco.com> writes:

> list[2:50] returns [ 2,3,4 ]
> list[20:] or list[20:30] returns []
>  
> Can I count on this, or should I code try/except for the day it's
> fixed?  This 'feature' reduces the error situations; but is it
> correct/intended?

Here's what the language reference manual says:

  Sequences also support slicing: a[i:j]selects all items with index k
  such that i <=k < j.

There is no mention of an error condition, and the description agrees
with the behaviour of the interpreter, so I'd consider it a feature.
-- 
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