django 運行報錯view must be a callable or a list/tuple in the case of include()

這個錯誤的原因是django 1.10之後不在支持URL用字符串表示了 
http://stackoverflow.com/questions/38744285/django-urls-error-view-must-be-a-callable-or-a-list-tuple-in-the-case-of-includ

真的好煩這種的，明明按着教程來的，都還會報錯，真是~!@#$%^&*

那我們換種寫法，

　　

from blog.views import hello

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^helloworld', hello)
]