Django-auth-ldap

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- Improved escaping for filter strings.

- Accept (and ignore) arbitrary keyword arguments to
``LDAPBackend.authenticate``.

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- Include test harness in source distribution. Some package maintainers find
this helpful.

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- More verbose log messages for authentication failures.

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- django-auth-ldap now provides experimental Python 3 support. Python 2.5 was
dropped.

To sum up, django-auth-ldap works with Python 2.6, 2.7, 3.3 and 3.4.

Since python-ldap isn't making progress toward Python 3, if you're using
Python 3, you need to install a fork:

.. code-block:: bash

$ pip install git+https://github.com/rbarrois/python-ldap.gitpy3

Thanks to `Aymeric Augustin <https://myks.org/en/>`_ for making this happen.

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* Update :class:`~django_auth_ldap.config.LDAPSearchUnion` to work for group
searches in addition to user searches.

* Tox no longer supports Python 2.5, so our tests now run on 2.6 and 2.7 only.

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* Bug fix: :setting:`AUTH_LDAP_GLOBAL_OPTIONS` could be ignored in some cases
(such as :func:`~django_auth_ldap.backend.LDAPBackend.populate_user`).