[Answer]-Django 1.8 issue with user authentication

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Which authentication/database backend are you using?

The lookup_cast() method was changed in Django 1.8 to:

def lookup_cast(self, lookup_type, internal_type=None)

from:

def lookup_cast(self, lookup_type)

If you are using a backend designed for 1.7 or earlier it might be possible that it could be called according to the new method signature (3 args: self plus 2 args), but the backend still expects 2 args (self plus 1 arg).

Perhaps you need to check if there is an update available for your backend.

👤mhawke

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