Loop until condition is true

[Mike Meyer]

Yes. In fact, I count at least 4 different modules in the Python 2.4
standard library that assign to True or False, mainly as a
compatibility measure for the days before they were built-ins. If you
try assigning None, CPython will refuse to compile the module, even if
the code where None is assigned is unreachable.

If there was ever a good reason to assign to None, I don't know it.

For the record, the code I just saw did something like this:

(var1, var2, None, None) = make_tuple(args)

Pretty clearly, they were just throwing away some unused values. Who
knows what it did to None...

<mike