Mercurial > hg
view tests/md5sum.py @ 26345:2aa0dde846b4
mq: remove a mutable default argument
Mutable default arguments are know to the state of California to cause bugs. The
underlying function already handle "None" as an option value, so we do not need
to do anything else.
author | Pierre-Yves David <pierre-yves.david@fb.com> |
---|---|
date | Thu, 24 Sep 2015 00:50:06 -0700 |
parents | 328739ea70c3 |
children | 6a98f9408a50 |
line wrap: on
line source
#!/usr/bin/env python # # Based on python's Tools/scripts/md5sum.py # # This software may be used and distributed according to the terms # of the PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2, which is # GPL-compatible. import sys, os try: from hashlib import md5 except ImportError: from md5 import md5 try: import msvcrt msvcrt.setmode(sys.stdout.fileno(), os.O_BINARY) msvcrt.setmode(sys.stderr.fileno(), os.O_BINARY) except ImportError: pass for filename in sys.argv[1:]: try: fp = open(filename, 'rb') except IOError as msg: sys.stderr.write('%s: Can\'t open: %s\n' % (filename, msg)) sys.exit(1) m = md5() try: while True: data = fp.read(8192) if not data: break m.update(data) except IOError as msg: sys.stderr.write('%s: I/O error: %s\n' % (filename, msg)) sys.exit(1) sys.stdout.write('%s %s\n' % (m.hexdigest(), filename)) sys.exit(0)