in this section we'll set up user registration and authorization system to allow people to register an account and log in and out we'll create new app to contain all the functionality related to working with users we'll also modify the topic model slightly so every topic belongs to certain user the users app we'll start by creating new app called usersusing the startapp command(ll_env)learning_logpython manage py startapp users (ll_env)learning_logls db sqlite learning_log learning_logs ll_env manage py users (ll_env)learning_logls users admin py __init__ py migrations models py tests py views py this command makes new directory called users with structure identical to the learning_logs app adding users to settings py we need to add our new app to installed_apps in settings pylike sosettings py --snip-installed_apps --snip-my apps 'learning_logs''users'--snip-now django will include the users app in the overall project including the urls from users nextwe need to modify the root urls py so it includes the urls we'll write for the users appurls py from django conf urls import includeurl from django contrib import admin urlpatterns url( '^admin/'include(admin site urls))url( '^users/'include('users urls'namespace='users'))url( ''include('learning_logs urls'namespace='learning_logs'))we add line to include the file urls py from users this line will match any url that starts with the word userssuch as user accounts