PEP-315 ("do" loop)

[Paul Rubin]

"John Roth" <newsgroups at jhrothjr.com> writes:
> 2. It is a very general construct, which might be what is called for. But I
> wonder if most of the time it would be used to accomplish something like:
> 
> while 1:
>     line = sys.stdin.readline()
>     if line == "\n":
>         break
> 
> In a neater way? How about, instead, creating an "until" loop:
> 
> until line == "\n":
>     line = sys.stdin.readline()

Most other languages have a way to put the test at the bottom of the loop.
Pythonically that could look like:

    repeat:
       line = sys.stdin.readline()
    until: line == '\n'

That would have similar indentation characteristics to try...finally.