def get_context_data(self, **kwargs):
        ctx = super(PaymentDetailsView, self).get_context_data(**kwargs)

        # Add variable to indicate if the user is blocked from paying with
        # accounts.
        ctx['is_blocked'] = security.is_blocked(self.request)

        form = forms.ValidAccountForm(self.request.user)
        ctx['account_form'] = form

        # Add accounts that are linked to this user
        if self.request.user.is_authenticated():
            ctx['user_accounts'] = gateway.user_accounts(self.request.user)

        # Add existing allocations to context
        allocations = self.get_account_allocations()
        ctx['account_allocations'] = allocations
        ctx['to_allocate'] = allocations.total - ctx['order_total_incl_tax']

        return ctx
dataset/ETHPy150Open django-oscar/django-oscar-accounts/sandbox/apps/checkout/views.py/PaymentDetailsView.get_context_data/swapped operands of `-`