INSTALLED_APPS = [
    "simpleui_captcha",
    "simpleui",
    ... 
]

path('simpleui_captcha/', include('simpleui_captcha.urls')),

# urls.py
from simpleui_captcha.views import LoginWithCaptcha


urlpatterns = [
    path('admin/login/', LoginWithCaptcha.as_view(), name='admin_login'),
    path('admin/', admin.site.urls),
    ...
]

# settings.py 默认值
SIMPLEUI_CAPTCHA = {
    'FAILED_LOGIN_COUNT_NAME': 'failed_login_count', # session 的键名
    'MAX_FAILED_LOGIN_COUNT': 3, # 不需要输验证码的最大失败次数
}