Pipe mode, line-by-line (stdin/stdout)

[rkdarst]

I recently had to make a "pipe mode" for Argos, which can read lines from stdin and translate each line separately, as soon as a \n is received. (This is since I couldn't install argos in the virtualenvironment I had other software in, which would have let me directly call it from Python. I have too many requests to make it worth re-starting Python for each query). Is this something you'd be interested in as a pull request? I guess I'd add a --pipe option to the existing argos-translate and try to reuse the existing other options for configuration. Or I could make piping the default if no argument is given.

Thanks for Argos! It has been very useful.

Below is the synopsis of my current frontent and what I would implement:

while True:
    # walrus operator would be appropriate but 3.8 still too new for my tastes                       
    line = sysstdin.readline()
    if not line:
        break

    if args.format == 'json':
        line = json.loads(line)

    new = argostranslate.translate.translate(
        line, sys.argv[1], sys.argv[2])

    if args.format == 'json':
        print(json.dumps(new))
        sys.stdout.flush()
    else:
        print(new)