view tests/readlink.py @ 26964:5abba2c92da3

import-checker: allow import of child modules from package root

I got the following error by rewriting hgweb/__init__.py to use
absolute_import, which is obviously wrong:

  Import cycle: mercurial.hgweb.__init__ -> mercurial.hgweb.__init__

"from foo import bar" should not make a cycle if "foo" is a package and
if "bar" is a module or a package. On the other hand, it should be detected
as a cycle if "bar" is a non-module name. Both cases are doc-tested already,
so this patch does not add new doctest.

#!/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)