Optimization of Tuples and Strings

[Carl Caulkett]

In article <a1bik0$9b$1 at slb4.atl.mindspring.net>, 
mgerrans at mindspring.com says...
> Anyone here know whether Python treats strings and tuples the way Java does
> Strings?   That is, since they are immutable, does it just "point" multiple
> references to an identical tuple to the same object?  For example:
> 
> x = (1,2)
> y = (1,2)
> 
> Are x and y really referring to the same object?

>>> x = (1,2)
>>> y = (1,2)
>>> id(x)
15769248
>>> id(y)
15793536
>>> 

>>> a = '123'
>>> b = '123'
>>> id(a)
19919952
>>> id(b)
19919952
>>> 

Tuples no, Strings yes, apparently. (using Python 2.2)

-- 
Cheers,
Carl