| Guido van Rossum | 9966e2c | 2001-06-22 16:05:48 +0000 | [diff] [blame] | 1 | #! /usr/bin/env python |
| 2 | |
| 3 | """Python utility to print MD5 checksums of argument files. |
| 4 | |
| 5 | Works with Python 1.5.2 and later. |
| 6 | """ |
| 7 | |
| 8 | import sys, md5 |
| 9 | |
| 10 | BLOCKSIZE = 1024*1024 |
| 11 | |
| 12 | def hexify(s): |
| 13 | return ("%02x"*len(s)) % tuple(map(ord, s)) |
| 14 | |
| 15 | def main(): |
| 16 | args = sys.argv[1:] |
| 17 | if not args: |
| 18 | sys.stderr.write("usage: %s file ...\n" % sys.argv[0]) |
| 19 | sys.exit(2) |
| 20 | for file in sys.argv[1:]: |
| 21 | f = open(file, "rb") |
| 22 | sum = md5.new() |
| 23 | while 1: |
| 24 | block = f.read(BLOCKSIZE) |
| 25 | if not block: |
| 26 | break |
| 27 | sum.update(block) |
| 28 | f.close() |
| 29 | print hexify(sum.digest()), file |
| 30 | |
| 31 | if __name__ == "__main__": |
| 32 | main() |