问Django 1.9中的新url格式

EN

我最近将我的Django项目升级到了1.9版。

当我尝试运行migrate时，我得到以下两个错误：

1. Support for string view arguments to url() is deprecated and will be removed in Django 1.10 (got app.views.about). Pass the callable instead.
2. django.conf.urls.patterns() is deprecated and will be removed in Django 1.10. Update your urlpatterns to be a list of django.conf.urls.url() instances instead.

有人能告诉我怎么做的正确语法吗？下面是我的urls.py的一个简短示例：

urlpatterns = patterns('',
    url(r'^about/$', 'app.views.about',
        name='about'),
)

urlpatterns += patterns('accounts.views',
    url(r'^signin/$', 'auth_login',
        name='login'),
)

谢谢!