class that keeps track of instances

[yosuke at ccwf.cc.utexas.edu]

yosuke at ccwf.cc.utexas.edu wrote:

> I want to have a class in my python application that does not allow
> multiple instance with same "name".  

Thank you very much for very quick and precise answers to my questions!
input for garbage collector and id are appreciated as well.  I head to
bookstore for the cookbook (O'reily's, right?).  i thought it was too
cryptic but maybe time for met to revisit the book.

-- 
yosuke kimura
Center for Energy and Environmental Resources
The Univ. of Texas at Austin, USA