[Python-Dev] Making None a keyword
Guido van Rossum
Thu, 25 Apr 2002 23:08:37 -0400
I'd like to make None a keyword. This prevents dumb users from
assigning to it and screwing themselves, and can cause a slight
speedup because using None avoids two dict lookups.
- Any objections?
- Can somebody help me implement this? I've got the parser changes
ready, but not the compiler changes.
Believe it or not, Zope3 contains code that will break with this
change: there are functions with a default argument of the form
None=None as a speedup hack. I think this is an argument *for* the
--Guido van Rossum (home page: http://www.python.org/~guido/)