# model training progress bar
def update_progress(progress):
    barLength = 30
    status = ""
    if isinstance(progress, int):
        progress = float(progress)
    if progress >= 1:
        progress = 1
    block = int(round(barLength*progress))
    text = "\rPercent: [{0}] {1}% {2}".format( "*"*block + "-"*(barLength-block), round(progress*100), status)
    sys.stdout.write(text)
    sys.stdout.flush()