'Find a user searching with SQL wildcards.'

def by_email_like(self, email_with_wildcards, filters=None, order_by=None, **kwargs):

    filters = self._munge_filters(self.model_class.email.like(email_with_wildcards), filters)
    order_by = (order_by or (model.User.email,))
    return super(UserManager, self).list(filters=filters, order_by=order_by, **kwargs)
