Modaco Kitchen Checksum

#!/usr/bin/env python

import hashlib
import os.path

def md5_for_file(f, block_size=2**20):
    md5 = hashlib.md5()
    while True:
        data = f.read(block_size)
        if not data:
            break
        md5.update(data)
    print md5.hexdigest()
    return md5

def checksumModacoFile(path):
    sourceChecksum = os.path.basename(path)
    sourceChecksum = sourceChecksum.lower()
    sourceChecksum = sourceChecksum.split('md5',1)[1].strip('-')
    sourceChecksum = sourceChecksum.split('.')[0]

    checksum = None
    with open(os.path.abspath(path), 'rb') as f:
        checksum = md5_for_file(f)

    return checksum.hexdigest() == sourceChecksum

if __name__ == "__main__":
    import sys

    files = sys.argv
    files.pop(0) # remove this file from list

    for file_ in files:
        if checksumModacoFile(file_):
            print '[PASS]', file_
        else:
            print '[FAIL]', file_