tail -f sys.stdin

[Antal Rutz]

Maybe I've found a poorman's one:

import sys
while True:
    try:
        line = sys.stdin.readline()
    except:
        sys.stdin.seek(0)
    else:
        process(line)


Antal Rutz wrote:
> Hi!
> 
> Maybe a very newbie question but:
> I'd like to write a prog which reads one line at a time on its sys.stdin
> and immediately processes it.
> If there are'nt any new lines wait (block on input).
> 
> I couldn't find a solution for it.
> Several methods that doesn't fit here:
> - reading the entire file-like object until EOF and then process
> - read one line(all lines) and when there aren't any lines more, quit.
> 
> So I need a 'tail -f' for stdin.
> 
> Thanks.
>