Input Handling • Prompt the user to enter their 4-digit ATM PIN. • Ensure the input is exactly 4 digits long. • If the input is too short or too long, show an ...
''' 1- to use any element inside the design like text box , button , check box and any other thing so must be call it form the class of the design which we work with it here EX : qt_app = Appli() # ...
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