A python function that can be used to print an ongoing progress bar.

print_progress.py

import sys;

def print_progess(currentProgress, maxProgress, numberDashes, message = ""):
    progress = numberDashes * (currentProgress / maxProgress) + 1;
    dashes = "=" * int(progress) + "> "
    percentage = int(100 * currentProgress / maxProgress) + 1;
    if percentage > 100:
        percentage = 100;
    sys.stdout.write("\r " + "<" + message + "> " + dashes + "{0:.2f}".format(percentage) + "%");
    sys.stdout.flush();