gistfile1.py

from django.contrib import admin
from django.contrib.auth.admin import UserAdmin
from django.contrib.auth.models import User

admin.site.unregister(User)

class MyUserAdmin(UserAdmin):
    filter_horizontal = ('user_permissions', 'groups')
    save_on_top = True
    list_display = ('username', 'email', 'is_staff', 'last_login')

admin.site.register(User, MyUserAdmin)