Why is this legal?

[Alex Martelli]

Michael George Lerner <mlerner at NOumichSPAM.edu> wrote:
   ...
> Heck, maybe I'll even download Python 2.4 so I can say
> cluster.sort(key=lambda c: c.resi)

Or better,
  cluster.sort(key=operator.attrgetter('resi'))

This way it will really fly!


Alex