slicing, mapping types, ellipsis etc.
ncoghlan at email.com
Tue Nov 30 12:18:26 CET 2004
Jerry Sievers wrote:
> Fellow Pythonists;
> I am totally puzzled on the use of slicing on mapping types and
It's generally not supported (since slices are designed to work with the
numerical indices of a sequence, not the arbitrary keys of a mapping).
The results of d.keys(), d.values() & d.items() can all be sliced like any other
> especially unsure on use of the Ellipsis... and slicing syntax that
> has two or more groups seperated by comma.
Others have explained these - one point that may not have been entirely clear is
that none of the classes in the standard library make use of these (although the
point may have been implied by the references to PyNumeric as the place to look
for more exact documentation. Python's own documentation of the slice() builtins
makes reference to Numeric!).
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