debuginstall: use codecs.lookup() to detect invalid encoding
encoding.fromlocal() never tries to decode an ascii string since
853574db5b12,
and there's no universal non-ascii string which can be decoded as any valid
character set.
# name space package to host third party extensions
from __future__ import absolute_import
import pkgutil
__path__ = pkgutil.extend_path(__path__, __name__)