Attitude about new keywords

[David Eppstein]

In article <7x1y2is9qt.fsf at ruckus.brouhaha.com>,
 Paul Rubin <phr-n2003b at NOSPAMnightsong.com> wrote:

> I'd like to ask a meta-question about this: why is adding new keywords
> something to be so urgently avoided?

Because it can make previously-working code stop working, when the new 
keyword happens to match somebody's variable name.

-- 
David Eppstein       UC Irvine Dept. of Information & Computer Science
eppstein at ics.uci.edu http://www.ics.uci.edu/~eppstein/