title: int has no len error Help me please?
body: <p>I have a problem with my program  and it's really annoying me I keep getting an error I don't even know why can you please help me? </p>
  
  <p>I Keep getting the builtins.TypeError: object of type 'int' has no len() error </p>
  
  <p>when it gets to the password verfication stage and I cannot figure out what the problem is..</p>
  
  <pre><code>#Program asking for a username, password and security pin 
  #Written by Cole Johnston
  #19/08/13 - 
  
  #Declare/Initialize variables
  sFirstName = "" #User's input of their first name (the minimum is 2 characters) (string) 
  sLastName = "" #User's input of their last name (the minimum is 4 characters) (string)
  sPassword = "" #User's input of their password (it must have a minimum length of 6 characters and a maximum length of 10 characters. It must contain at least 2 numbers in the password, it is case sensitive)
  iPinNo = 0 #User's chosen input of security pin (It must be 4 characters long and contain only numbers which are single digit and range between 0-9)
  iCount = 0 #The amount of times the user enters an invalid username (integer)
  sMessage = "" #Message for user (string)
  iFirstNameCheck=0 #Checks first name
  iLastNameCheck=0 #Checks last name
  iPasswordCheck=0 #Checks password
  iPinNoCheck=0 #Checks pin
  sUserName = "" #Creates a username for the user (uses first and last name)
  sPasswordVerification = "" #Checks the password is correct and same as the first one
  
  def APFirstERROR(): 
      print(("ERROR: Incorrect Attemps consisting of 3 \n\t Closing program")) 
      sys.ext
  
  
  def APSecondERROR(): 
      print (("ERROR: Incorrect Attemps consisting of 3 \n\t Closing program")) 
      sys.ext
  
  def APThirdERROR(): 
      print (("ERROR: Incorrect Attemps consisting of 3 \n\t Closing program")) 
      sys.ext
  
  def APFourthERROR(): 
      print (("ERROR: Incorrect Attemps consisting of 3 \n\t Closing program")) 
      sys.ext
  
  
  #Ask for the users First name 
  
  while len(sFirstName) &lt;2:  
      sFirstName=input("Could you please enter your first name: ")  
      if len(sFirstName) &lt;2:  
          print("\tERROR: I'm sorry, you must enter a minumum of two characters") 
          FirstName = "" 
          iFirstNameCheck = iFirstNameCheck +1
          print (iFirstNameCheck, "Incorrect attempt") 
          if iFirstNameCheck == 3: 
              APFirstERROR() 
  
  #Ask for the users Last name        
  while len(sLastName)  &lt;4: 
      sLastName = input("Could you please enter your last name: ") 
      if len(sLastName) &lt;4 : 
          print ("\tERROR: I'm sorry, you must enter a minumum of four characters") 
          LastName = "" 
          iLastNameCheck = iLastNameCheck +1
          print (iLastNameCheck, "Incorrect attempt") 
          if iLastNameCheck==3: 
              APSecondERROR()    
  
  sUsername = "Congratulations, your username will be " + sLastName[0:4] + sFirstName[0:1] 
  print (sUsername)            
  
  
  while sPassword is "": 
      sPassword=input("Could you please enter a password: ") 
      if len(sPassword) &lt;6 or len(sPassword) &gt;10 : 
          print("ERROR: I'm sorry, your password must be 6 characters or more but not exceeding 10 characters.\nPlease try again") 
          if sum(c.isdigit() for c in sPassword) &lt;2: 
              print("Im sorry, your password does not contain enough numbers.\nThe requirements are a minimum of 2 numbers")         
              sPassword="" 
              iPasswordCheck=iPasswordCheck+1
              print(iPasswordCheck, "Incorrect Attempt") 
              if iPasswordCheck ==3: 
                  sPassword="Incorrect"
                  APErrorThird()             
                  break 
  
  #Verify the password 
  while sPasswordVerification is "": 
      sPasswordVerification=input("Please enter your password a second time for verification: ") 
      if sPasswordVerification==sPassword:
          print("That password is Accepted") 
          if not sPasswordVerification==sPassword: 
              sPasswordVerification="" 
              print ("I'm sorry, that password is: Not accepted") 
  
                  a
  #ASk user for pin creation 
  while len(iPinNo) &lt;4: 
      iPinNo= input("Now could you please create a pin number. The requirements are that it must be only numbers (0-9). Must be 4 numbers long\n\tpin=?\t\n:") 
      if not re.match("^[1-9]*$", iPinNo): 
          print ("ERROR: I'm sorry but only numbers between 1-9 are allowed!") 
          if len (iPinNo) &lt;4: 
              print ("I'm sorry, your pin number MUST be 4 characters.") 
              iPinNoCheck=iPinNoCheck+1
              print (iPinNoCheck, "Incorrect Attempt") 
              if iPinNoCheck==3: 
                  iPinNo ="Incorrect"
                  APErrorFourth()                 
  
  #Display the Username, the Password and the Pin number
  
  print ("Okay, " + (sFirstName) +" Your username is: ",sUsername) 
  print("And, Your password is: ",sPassword)   
  print ("Finally , Your Security pin is: ",iPinNo)     
  </code></pre>