Problem
You wish to check if the user has any cookies set from previous interactions with your application.
Solution
To retrieve a cookie with a given name, use the HTTPRequest.get_cookie() method.
login_time = request.get_cookie('login_time')get_cookie() returns a string containing the cookie's value; if no such cookie exists, get_cookie() returns None. You can also specify a different default value:
login_time = int(request.get_cookie('login_time', time.time()))
Discussion
See CookieSecurity for a discussion of security considerations related to cookies.