dag/attest — pull request #136 by dahlia (2012-07-10 23:55:58+00:00)
Title: Add AssertImportHook.is_package() method

Although implementing `.is_package()` is [optional according to PEP 302][1], it makes several Python codes that assume every import hook implements this method (e.g. [Flask][2]) to work well with Attest.

[1]: http://www.python.org/dev/peps/pep-0302/#optional-extensions-to-the-importer-protocol
[2]: https://github.com/mitsuhiko/flask/blob/0.9/flask/helpers.py#L727