def signIn():
 userEntry = raw_input("Please enter your username:")
 userEntry1 = raw_input("Please enter your password:")
 searchfile = open("user_account.txt", "r")
 for line in searchfile:
    if userEntry and userEntry1 in line:
        action = raw_input("Do you want to take a quiz or output reports?")
        if action.lower() == "take a quiz":
            takeQuiz()
        elif action.lower() == "output reports":
            reports()
        else:
             print "ERROR: RESTART PROGRAM."
    elif userEntry and userEntry1 not in line:
        print "ERROR: INCORRECT USERNAME OR PASSWORD."