Question

I have a method for signing up a user, basically if the user fails
validation I want the request to stop processing so the user isn’t
signed up.

def post(self):
       #[...]
       if isvalid(username) == False:
           print "Invalid Username"
           self.redirect("/badusername")

       print "User Is OK"

If I enter a valid username, ‘User Is OK’ is printed to the console
and everything is dandy, but if I use an invalid username, ‘Invalid
Username’ AND ‘User Is OK’ is printed to the console, the page re-
directs correctly though. How do I stop the request after
self.redirect so print "User Is OK" is never called?

Answer 1

def post(self):
   #[...]
   if isvalid(username) == False:
       print "Invalid Username"
       self.redirect("/badusername")
       return

   print "User Is OK"