tests/readlink.py

discovery: put trivial branch first

Having the simple and tiny branch of the conditional first help readability. The
"else" that appears after a screen of code is harder to relate to a conditional.

#!/usr/bin/env python

import errno, os, sys

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

sys.exit(0)