Benefits of moving from Python to Common Lisp?

[Andrew Dalke]

Tim Bradshaw:
> Languages such as Perl and (I think) Python are *single instance*
> classes - there is only one implementation, and the language
> is defined implicitly by that implementation.

As a minor clarification, there are several distinct implementations
of Python (or a Python-like language).  The ones I know of are:

  Python in C -- "the" Python, www.python.org
  Python in Java -- www.jython.org
  Python in C# -- http://www.activestate.com/Initiatives/NET/Research.html
  Python in OCaml -- http://vyper.sourceforge.net/
  Python bytecode compiler, in C --
       http://homepages.ulb.ac.be/~arigo/psyco/

                    Andrew
                    dalke at dalkescientific.com