auth: when a auth plugin can't be imported try the next one instead of breaking completly Some authentication modules depend on external services. This may cause the import to fail. Or another scenario is that a (third party) authentication module has been removed and can't be imported anymore.

[tox]
minversion = 1.8
envlist = py{26,27}-pytest

[testenv]
setenv =
    PYTHONHASHSEED = 0
deps =
    -r{toxinidir}/dev_requirements.txt
    py26-pytest: unittest2
    python-ldap
    python-pam
commands =
    pytest: py.test {posargs}