terminal_progress_bar.py

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import sys

def print_progress(iteration, total, prefix='', suffix='',
                   decimals=1, bar_length=100):
    """Call in a loop to create terminal progress bar.

    Required keyword arguments:
    iteration -- current iteration
    total -- total iterations

    Optional keyword arguments:
    prefix -- prefix string (default '')
    suffix -- suffix string (default '')
    decimals -- positive number of decimals in percent complete (default 1)
    bar_length -- character length of bar (default 100)
    """
    str_format = "{0:." + str(decimals) + "f}"
    percents = str_format.format(100 * (iteration / float(total)))
    filled_length = int(round(bar_length * iteration / float(total)))
    bar = u'█' * filled_length + '-' * (bar_length - filled_length)

    sys.stdout.write('\r%s |%s| %s%s %s' %
                     (prefix, bar, percents, '%', suffix)),

    if iteration == total:
        sys.stdout.write('\n')
    sys.stdout.flush()