Loop until condition is true

[Benji York]

Mike Meyer wrote:
> Making None a constant broke existing code (and I just saw old code
> that assigned to None). Are True and False that much more common as
> variable names than None?

I would think so.  I know that my pre-booleans-in-Python code routinely 
did something like "from booleans import True, False".  Of course the 
fix is easy, but it still must be applied before the code will run.
--
Benji York