Duplicate input call

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• Ask the user what is their ID number.
• Check if it is a valid ID number. (To make our code more simple we only check the length of the string.)
• Ask again if it was not a valid number.

examples/loops/duplicate_input_call_with_if.py

id_str = input("Type in your ID: ")

if len(id_str) != 9:
   id_str = input("Type in your ID")

print("Your ID is " + id_str)

• Realize, that if the user types in an incorrect string for the 2nd time, our code does not check it.