Python's pre-declared constants are kinda weird

Python has six pre-declared constants (True, False, None, __debug__, Ellipsis, and NotImplemented) that behave inconsistently with each other. True, False, and None are lexical keywords rather than identifiers, making them unique in the language, while __debug__ is a special identifier that cannot be assigned to despite not being a keyword. The article highlights these inconsistencies as design quirks that set these constants apart from how Python typically handles other language features.