progressbar.py

# Implementation of Brian Khuu's progress bar from http://stackoverflow.com/questions/3160699/python-progress-bar
# with some small tweaks to formatting
#
# Accepts a float between 0 and 1. Any int will be converted to a float.
# A value under 0 represents a 'halt'.
# A value at 1 or bigger represents 100%
#
# Usage
#for i in len(10):
#        progressbar.update_progress((i+1)/len(10))
#

import sys
def update_progress(progress):
    bar_length = 50  # Modify this to change the length of the progress bar
    status = ""
    if isinstance(progress, int):
        progress = float(progress)
    if not isinstance(progress, float):
        progress = 0
        status = "error: progress var must be float\r\n"
    if progress < 0:
        progress = 0
        status = "Halt...\r\n"
    if progress >= 1:
        progress = 1
        status = "Done...\r\n"
    block = int(round(bar_length*progress))
    text = "\rPercent: [{}] {:.1f}% {}".format("#"*block + "-"*(bar_length-block), progress*100, status)
    sys.stdout.write(text)
    sys.stdout.flush()