It's no longer an integer :)
It still is. bool is a subclass of int:
Python 3.6.5 (default, Mar 30 2018, 06:42:10)
[GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.39.2)] on darwin
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>>> isinstance(True, int)
>>> isinstance(False, int)
Shameful mistake, thanks for clarifying ! I meant that they had their own type now, indeed from integer.
Initially, Python used to have no bool type
(people used 0 for false and non-zero value like 1 for true).
Then they added True, False, and a bool type, but, for backward
compatibility, they couldn't make True and False constants- they
just were built-in variables.
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