Foone

#!/usr/bin/python
import os,datetime

def is_leap_year():
    today=datetime.date.today()
    try:
        datetime.date(today.year,2,29) # won't work if this isn't a leap year
        return True
    except ValueError:
        return False

def get_xkcd394_sizes(filename):
    size=os.path.getsize(filename)
    sizes={}

    if is_leap_year():
        sizes['kB']=int(size/1000) # kilobyte, leap year
    else:
        sizes['kB']=int(size/1024) # kilobyte, non leap year

    sizes['KB']=int(size/1012) # kelly-bootle standard unit

    sizes['kb']=size/1024.937528 # intel kilobyte

    sizes['KiB']=size/complex(1024,1) # imaginary kilobyte

    since_2008 = datetime.date.today().year-2008
    drivemaker=908 - 4 * since_2008
    sizes['Kb']=int(size/drivemaker) # drivemaker's kilobyte

    sizes['KBa']=int(size/1152) # baker's kilobyte

    return sizes

if __name__=='__main__':
    import sys
    for arg in sys.argv[1:]:
        print arg
        sizes=get_xkcd394_sizes(arg)
        for type in 'kB KB KiB kb Kb KBa'.split():
            print '  %s %s' % (sizes.get(type,''),type)