Python 3 id() built-in function TUTORIAL

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Tutorial on how to use the id() built-in function from the Python 3 Standard Library.

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3:33 what Python does behind the scenes is cache the integers ranging from -5 to 256 (inclusive) because they are used so often -> having them in memory increases performance! The Python interpreter creates those small int objects on startup. Objects for integers outside that range are created when you assign those integers to a variable, creating a new object in memory every time, which is why the id differs in those cases

felixvanderspek