def get_permission_required(self, request=None):
        # Make sure that the permission_required attribute is set on the
        # view, or raise a configuration error.
        if self.permission_required is None:
            raise ImproperlyConfigured(
                '{0} requires the "permission_required" attribute to be '
                'set.'.format(self.__class__.__name__))

        return self.permission_required
Perform direct computation of covariance matrix eigen{values,vectors},
dataset/ETHPy150Open brack3t/django-braces/braces/views/_access.py/PermissionRequiredMixin.get_permission_required--crossover with--dataset/ETHPy150Open lisa-lab/pylearn2/pylearn2/models/pca.py/SparsePCA._cov_eigen