#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
import time
import math

# Output example: [=======   ] 75%

# width defines bar width
# percent defines current percentage
def progress(width, percent):
    marks = math.floor(width * (percent / 100.0))
    spaces = math.floor(width - marks)
    
    loader = '[' + ('=' * int(marks)) + (' ' * int(spaces)) + ']'
      
    sys.stdout.write("%s %d%%\r" % (loader, percent))
    if percent >= 100:
        sys.stdout.write("\n")
    sys.stdout.flush()
    
# Simulate doing something...
def wait():
  for i in xrange(100):
      progress(50, (i + 1)) # +1 because xrange is only 99
      time.sleep(0.1) # Slow it down for demo
      
wait()