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Why 'is' Lies to You in Python: 256 is 256, but 257 isn't (and 3.15 Changed It)
In Python 3.9, 256 is 256 is True, but 257 is 257 is False. And in Python 3.15, the answer changed. Here's why, and the real bug it causes. Video version: The weird part Python 3.9,...