making python scripts backwards compatible

[Brian Quinlan]

Sean Perry wrote:
> I find it particularly annoying that the python group makes this
> assumption we are all running last week's python.  Not everyone 
> owns the machine their scripts run on.

1. Who is the "python group" in this context?
2. How much effort should have been expended to make sure that all
modules shipped as part of Python 2.2 work with Python x.y?

Cheers,
Brian