tests/readlink.py

byterange: remove old two-arg raise trick

We don't care about the original traceback, and this was frustrating
any efforts to make the code work on Python 3.3.

#!/usr/bin/env python

import errno, os, sys

for f in sys.argv[1:]:
    try:
        print f, '->', os.readlink(f)
    except OSError, err:
        if err.errno != errno.EINVAL:
            raise
        print f, 'not a symlink'

sys.exit(0)