import time
import sys

toolbar_width = 40

# setup toolbar
sys.stdout.write("[%s]" % (" " * toolbar_width))
sys.stdout.flush()
sys.stdout.write("\b" * (toolbar_width+1)) # return to start of line, after '['

for i in range(toolbar_width):
    time.sleep(0.1) # do real work here
    # update the bar
    sys.stdout.write("-")
    sys.stdout.flush()

sys.stdout.write("]\n") # this ends the progress bar

def progress_bar(iteration=0, total=0, prefix='', suffix='', decimals=1, length=50, fill='█', print_end="\r"):
    """
    Call in a loop to create terminal progress bar
    @params:
        iteration   - Required  : current iteration (Int)
        total       - Required  : total iterations (Int)
        prefix      - Optional  : prefix string (Str)
        suffix      - Optional  : suffix string (Str)
        decimals    - Optional  : positive number of decimals in percent complete (Int)
        length      - Optional  : character length of bar (Int)
        fill        - Optional  : bar fill character (Str)
        printEnd    - Optional  : end character (e.g. "\r", "\r\n") (Str)
    """
    percent = ("{0:." + str(decimals) + "f}").format(100 * (iteration / float(total)))
    filled_length = int(length * iteration // total)
    bar = fill * filled_length + '-' * (length - filled_length)
    #sys.stdout.write("\b" * (filled_length + 1))
    print(f'{prefix}|{bar}| {percent}% {suffix}')
    print('%s |%s| %s%% %s' % (prefix, bar, percent, suffix), end=print_end)
    # Print New Line on Complete
    if iteration == total:
        print()


def toolbar():
    # setup toolbar

    toolbar_width = 40
    sys.stdout.write("[%s]" % (" " * toolbar_width))
    sys.stdout.flush()
    sys.stdout.write("\b" * (toolbar_width+1)) # return to start of line, after '['

    for i in range(toolbar_width):
        time.sleep(0.1) # do real work here
        # update the bar
        sys.stdout.write("-")
        sys.stdout.flush()

    sys.stdout.write("]\n") # this ends the progress bar