[Tutor] Input handling?

[Scott Yamamoto]

2.7.2 on python for ios(platform is darwin)
problem reoccured
Script:

import random
username = ""
def playername():
  global username
  Mlist = ["name1","name2","name3"]
  Flist = ["name4","name5", "name6"]
  Llist = ["Lname1","Lname2","Lname3"]
  username = raw_input("input your desired username: ")
  if username == "":
    username = random.choice(Mlist) + " " + random.choice(Llist)
playername()

Doesnt return the error during run
Attempting implementation of try results in indentation errors in later lines
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