In this video I'll show you how to validate your generated registration key with Tkinter and Python.
In the last video we generated a random serial number for software registration. In this video I'll show you how to validate that key, and also generate a key that is always valid.
What makes a valid key? A valid key is valid if we say it is! Whatever rule we create to validate a key will work, so long as that rule is met.
In this video we'll make sure a certain digit occurs three times in our key, and also we'll make sure our key has a numerical score between 1700 and 1800.
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