unnecessary-negation / C0117

Message emitted:

Consider changing "%s" to "%s"

Description:

Used when a boolean expression contains an unneeded negation, e.g. when two negation operators cancel each other out.

Problematic code:

double_not.py:

if not not input():  # [unnecessary-negation]
    pass

equivalent_comparator_exists.py:

a = 3
b = 10
if not a > b:  # [unnecessary-negation]
    pass

Correct code:

double_not.py:

if input():
    pass

equivalent_comparator_exists.py:

a = 3
b = 10
if a <= b:
    pass

Created by the refactoring checker.