[Siop-development] How to implement the "Tuple" type in Python

[Rapheal K. <ra...@ma...>]

  I think it makes sense for SIOP to have the notion of a Tuple type.  It's 
obviously very straight forward for Python and maps relatively ok to Java 
array objects (vs. List objects).  This question is probably only answerable 
by Kevin, but does anyone have any idea what the best way to go about 
supporting Ruby Tuples are?  Right now, I've implemented a Tuple class, which 
is akin to an Array class, only it's immutable.

  Sort of needed to do it like that as creating an Array subclass bought me 
very little.  I needed to either make the array immediately frozen, or better 
yet, block the mutation methods.  However, that was not enough because all 
the different ways that lists operate often return NEW arrays.  However, for 
Tuples, it should really return new Tuples.

  Just wondering.  The Tuples in the SIOP Ruby library work.  However, if 
there is a better way, I would rather do that.

  - Rafe