[MATRIX-SIG] reverse of take?

[Konrad Hinsen]

> existing method, it's better to use that syntax. I think you can get this
> pretty easily with __setitem__  or __setslice__, so the syntax shouldn't
> really be an issue.

Indeed. A single subscript of any type is passed to __getitem__:

  x[[1, 3, 5]]  -->  x.__getitem__([1, 3, 5])

Several subscripts are passed as a tuple:

  x[[1, 3, 5], [3, 2, 5]] -->  x.__getitem__(([1, 3, 5], [3, 2, 5]))

Of course __setitem__ works in the same way. For C types it's a bit
more complicated since integers are passed via the sequence interface
whereas everything else gets passed via the mapping interface, but
it's not a real problem either.

So the difficult part is not syntax, but implementing the indexing
operations in a general and efficient way.
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Konrad Hinsen                          | E-Mail: hinsen@ibs.ibs.fr
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