Quick Bandwidth Format function

bandwidth.py

def format_bandwidth(i):
        loop = 0
        current_num = i
        last_num = 0
        label = ["Bps", "KBps", "MBps", "GBps"]
        while(True):
                last_num = current_num
                current_num = current_num/1024.0
                if(current_num < 1):
                        return '{0:0.2f} {1}'.format(last_num, label[loop])
                loop = loop + 1