while (a=b()) ...

[Evan Simpson]

This has been suggested (and Guido has said that he might well put it in) as
"and while", so that loop starts can be distinguished from loop
continuations.  Thus:

while 1:
  value = getValue()
and while value:
  process(value)

Moshe Zadka wrote:
> do:
>   line=sys.stdin.readline()
> while line:
>   sys.stdout.write(line)

neue-Schlüsselwörter-sind-verboten-ly yr's
Evan Simpson