Make ASCII progress bars

asciibar.py

#!/usr/bin/python3
# -*- coding: UTF-8 -*-


import sys


PROGRESS_CHAR = '#'
EMPTY_CHAR = '.' 


def main():
    percentage = round(float(sys.argv[1]))
    
    # Clip percentage
    percentage = max(0, min(100, percentage))
    
    bar_length = int(sys.argv[2])-(3+len(str(percentage)))
    
    factor = percentage/100.
    
    rest = int((1-factor)*bar_length) * EMPTY_CHAR
    progress = (int(factor*bar_length) * PROGRESS_CHAR + 
                '{0}%'.format(percentage))

    print('|', end='')
    print(progress + rest, end='')
    print('|')

if __name__ == '__main__': 
    main()

output

$ ./asciibar.py 42 100
|#######################################42%.......................................................|