admin: exclude anonymous user from listing

passbook/admin/views/users.py

@@ -9,7 +9,11 @@ from django.shortcuts import redirect
 from django.urls import reverse, reverse_lazy
 from django.utils.translation import ugettext as _
 from django.views.generic import DeleteView, DetailView, ListView, UpdateView
-from guardian.mixins import PermissionListMixin, PermissionRequiredMixin
+from guardian.mixins import (
+    PermissionListMixin,
+    PermissionRequiredMixin,
+    get_anonymous_user,
+)
 
 from passbook.admin.forms.users import UserForm
 from passbook.core.models import Nonce, User
@@ -25,6 +29,9 @@ class UserListView(LoginRequiredMixin, PermissionListMixin, ListView):
     paginate_by = 40
     template_name = "administration/user/list.html"
 
+    def get_queryset(self):
+        return super().get_queryset().exclude(pk=get_anonymous_user().pk)
+
 
 class UserCreateView(
     SuccessMessageMixin,