Looks like the new pylint got some new checks which we're failing.
These should really be fixed, as some of them are 500's waiting to happen.

The failing checks:

*** Module ipsilon.providers.openid.auth
E: 59,37: Instance of 'InvalidRequest' has no 'code' member (no-member)
E: 59,45: Instance of 'InvalidRequest' has no 'msg' member (no-member)
E: 62,49: Instance of 'AuthenticationError' has no 'msg' member (no-member)
E: 84,18: Too many positional arguments for constructor call (too-many-function-args)
E:164,20: The raise statement is not inside an except clause (misplaced-bare-raise)
** Module ipsilon.providers.saml2.auth
E:273,22: No value for argument 'code' in constructor call (no-value-for-parameter)
* Module ipsilon.tools.saml2metadata
E:100,47: Instance of 'date' has no 'time' member (no-member)
**** Module ipsilon.util.data
E:137,20: Value 'self._table.columns' is unsubscriptable (unsubscriptable-object)
E:149,28: Value 'self._table.columns' is unsubscriptable (unsubscriptable-object)
E:780,22: Method 'columns' has no 'uuid' member (no-member)
E:816,22: Method 'columns' has no 'uuid' member (no-member)