[Iterator Progress Bar] Print a progress bar whilst processing an iterable #python

progress_bar.py

def progress_bar(iterable, prefix='Progress', suffix='Complete', decimals=1,
                 length=50, fill='=', printEnd="\r"):
    """
    shows a terminal progreess bar as iterations are passed through, use as
    for i in progress_bar(range(1000)):
    	pass
    :params: iteration: current iteration
    :params: total: total iterations
    :params: prefix: prefix string
    :params: suffix: suffix string
    :params: decimals: positive number of decimals in percent complete
    :params: length: character length of bar
    :params: fill: bar fill character
    :params: print_end: end character (e.g. "\r", "\r\n")
    """
    total = len(iterable)

    # progress bar printing function
    def print_progress_bar(iteration):
        percent = ("{0:." + str(decimals) + "f}").format(100 * (iteration / float(total)))
        filledLength = int(length * iteration // total)
        bar = fill * filledLength +  '>' + '-' * (length - filledLength)
        print(f'\r{prefix} |{bar}| {percent}% {suffix}', end = printEnd)

    # initial call
    print_progress_bar(0)

    # update progress bar
    for i, item in enumerate(iterable):
        yield item
        print_progress_bar(i + 1)

    # print new line on complete
    print()