util.py 文件源码

def progress(prompt, percent, bar_length=20):
    hashes = '#' * int(round(percent * bar_length))
    spaces = ' ' * (bar_length - len(hashes))    
    return "\r{}: [{}] {}%".format(
        prompt,
        hashes + spaces,
        int(round(percent * 100)))

#ref: https://docs.python.org/3.5/library/itertools.html#itertools.zip_longest