Markov process representation

[Jack Diederich]

On Wed, Mar 15, 2006 at 04:50:31PM -0800, Paul Rubin wrote:
> "kpp9c" <kp8 at mac.com> writes:
> >     self._all_states |= set(key[i] for key in probabilities)
> > I am running:
> > Python 2.3 (#1, Sep 13 2003, 00:49:11)
> 
> generator comprehensions are new in 2.4.  Try:
> 
>    self._all_states |= set([key[i] for key in probabilities])

And sets aren't a builtin in 2.3

try:
  set()
except NameError:
  import sets
  set = sets.Set

-Jack