Description

sobolevn

opened on May 8, 2026

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Feature or enhancement

It is scheduled for removal in 3.16:

cpython/Objects/boolobject.c

Lines 70 to 84 in 49918f5

	static PyObject *
	bool_invert(PyObject *v)
	{
	if (PyErr_WarnEx(PyExc_DeprecationWarning,
	"Bitwise inversion '~' on bool is deprecated and will be removed in "
	"Python 3.16. This returns the bitwise inversion of the underlying int "
	"object and is usually not what you expect from negating "
	"a bool. Use the 'not' operator for boolean negation or "
	"~int(x) if you really want the bitwise inversion of the "
	"underlying int.",
	1) < 0) {
	return NULL;
	}
	return PyLong_Type.tp_as_number->nb_invert(v);
	}

Refs #103487
Refs #82012

Linked PRs

• gh-149532: Remove bool.__invert__ magic method #149533

Reacted by Bartosz Sławecki

Activity

1. sobolevn

   self-assigned this

   on May 8, 2026
2. sobolevn

   added

   type-featureA feature request or enhancementA feature request or enhancement

   interpreter-core(Objects, Python, Grammar, and Parser dirs)(Objects, Python, Grammar, and Parser dirs)

   on May 8, 2026
3. sobolevn

   added a commit that references this issue on May 8, 2026

   pythongh-149532: Remove `bool.__invert__` magic method

   d01f243
4. serhiy-storchaka commented on May 8, 2026

   

   serhiy-storchaka

   on May 8, 2026

   Member

   More actions

   Wait, was not deprecation reverted? See https://discuss.python.org/t/bool-deprecation/62232 .
5. sobolevn commented on May 9, 2026

   

   sobolevn

   on May 9, 2026

   MemberAuthor

   More actions

   Oh, I've missed all this discussion, because it was never linked anywhere.
   I just followed the plan in Doc/deprecations/pending-removal-in-3.16.rst

   I guess that I will leave the PR open for now, while the discussion is ongoing.
   We can close / merge it when people will decide.

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