[Python-Dev] Constancy of None

[Guido van Rossum]

> (And is it time to make assignments to True and False trigger a
> SyntaxWarning, or should that wait until 2.5?)

We should be much more conservative with that.  There's tons of code
out there that assigns these (conditionally, if it's 2.3-aware) to
truth values and we don't want to break that.  The situation with None
is much better, since it was always there; AFAIK only a few speed
freaks in Zope-land have ever assigned to it (and always using the
form "None = None").

--Guido van Rossum (home page: http://www.python.org/~guido/)