[New-bugs-announce] [issue37427] sorted() and list.sort() don't accept non-boolean objects with __bool__() as `reverse` parameter

[NODA, Kai]

New submission from NODA, Kai <nodakai at gmail.com>:

class X:
    def __bool__(self):
        return True

x = [1, 2, 3]
x.sort(reverse=X())
print(x)
print(sorted([1, 2, 3], reverse=X()))

TypeError: an integer is required (got type X)

We can always still do

x.sort(reverse=bool(X()))
print(sorted([1, 2, 3], reverse=bool(X())))

but that isn't cool

----------
components: Interpreter Core
messages: 346722
nosy: nodakai
priority: normal
severity: normal
status: open
title: sorted() and list.sort() don't accept non-boolean objects with __bool__() as `reverse` parameter
type: behavior
versions: Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue37427>
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