How to use the vcstool.streams.stdout.write function in vcstool

running_job_paths.append(job['client'].path)
        logger.debug("started '%s'" % job['client'].path)
        job_queue.put(job)
    logger.debug('ongoing %s' % running_job_paths)

    # start all workers
    [w.start() for w in workers]

    # collect results
    while len(results) < len(jobs):
        (job, result) = result_queue.get()
        logger.debug("finished '%s'" % job['client'].path)
        running_job_paths.remove(result['job']['client'].path)
        if show_progress and len(jobs) > 1:
            if result['returncode'] == NotImplemented:
                stdout.write('s')
            elif result['returncode']:
                stdout.write('E')
            else:
                stdout.write('.')
            if debug_jobs:
                stdout.write('\n')
            stdout.flush()
        result.update(job)
        results.append(result)
        if pending_jobs:
            for pending_job in pending_jobs:
                pending_job.get('depends', set()).discard(job['client'].path)
            while job_queue.qsize() < len(workers):
                job = get_ready_job(pending_jobs)
                if not job:
                    break

# start all workers
    [w.start() for w in workers]

    # collect results
    while len(results) < len(jobs):
        (job, result) = result_queue.get()
        logger.debug("finished '%s'" % job['client'].path)
        running_job_paths.remove(result['job']['client'].path)
        if show_progress and len(jobs) > 1:
            if result['returncode'] == NotImplemented:
                stdout.write('s')
            elif result['returncode']:
                stdout.write('E')
            else:
                stdout.write('.')
            if debug_jobs:
                stdout.write('\n')
            stdout.flush()
        result.update(job)
        results.append(result)
        if pending_jobs:
            for pending_job in pending_jobs:
                pending_job.get('depends', set()).discard(job['client'].path)
            while job_queue.qsize() < len(workers):
                job = get_ready_job(pending_jobs)
                if not job:
                    break
                running_job_paths.append(job['client'].path)
                logger.debug("started '%s'" % job['client'].path)
                job_queue.put(job)
            assert running_job_paths

job_queue.put(job)
    logger.debug('ongoing %s' % running_job_paths)

    # start all workers
    [w.start() for w in workers]

    # collect results
    while len(results) < len(jobs):
        (job, result) = result_queue.get()
        logger.debug("finished '%s'" % job['client'].path)
        running_job_paths.remove(result['job']['client'].path)
        if show_progress and len(jobs) > 1:
            if result['returncode'] == NotImplemented:
                stdout.write('s')
            elif result['returncode']:
                stdout.write('E')
            else:
                stdout.write('.')
            if debug_jobs:
                stdout.write('\n')
            stdout.flush()
        result.update(job)
        results.append(result)
        if pending_jobs:
            for pending_job in pending_jobs:
                pending_job.get('depends', set()).discard(job['client'].path)
            while job_queue.qsize() < len(workers):
                job = get_ready_job(pending_jobs)
                if not job:
                    break
                running_job_paths.append(job['client'].path)
                logger.debug("started '%s'" % job['client'].path)

[w.start() for w in workers]

    # collect results
    while len(results) < len(jobs):
        (job, result) = result_queue.get()
        logger.debug("finished '%s'" % job['client'].path)
        running_job_paths.remove(result['job']['client'].path)
        if show_progress and len(jobs) > 1:
            if result['returncode'] == NotImplemented:
                stdout.write('s')
            elif result['returncode']:
                stdout.write('E')
            else:
                stdout.write('.')
            if debug_jobs:
                stdout.write('\n')
            stdout.flush()
        result.update(job)
        results.append(result)
        if pending_jobs:
            for pending_job in pending_jobs:
                pending_job.get('depends', set()).discard(job['client'].path)
            while job_queue.qsize() < len(workers):
                job = get_ready_job(pending_jobs)
                if not job:
                    break
                running_job_paths.append(job['client'].path)
                logger.debug("started '%s'" % job['client'].path)
                job_queue.put(job)
            assert running_job_paths
        if running_job_paths:
            logger.debug('ongoing ' + str(running_job_paths))