AttributeError: 'Timestamp' object has no attribute 'days' code example

Example 1: AttributeError: 'dict' object has no attribute 'iteritems'

As you are in python3 , use dict.items() instead of dict.iteritems()
iteritems() was removed in python3, so you can't use this method 
anymore. Take a look at Python 3.0 Wiki Built-in Changes section, 
where it is stated:

Removed dict.iteritems(), dict.iterkeys(), and dict.itervalues().

Instead: use dict.items(), dict.keys(), dict.values() respectively.

Example 2: AttributeError: module 'django.contrib.auth.views' has no attribute 'login'

from django.contrib.auth import views as auth_views

urlpatterns = [
   url( r'^login/$',auth_views.LoginView.as_view(template_name="useraccounts/login.html"), name="login"),
]