negate-equal-op (SIM201)

Derived from the flake8-simplify linter.

Fix is always available.

What it does

Checks for negated == operators.

Why is this bad?

Negated == operators are less readable than != operators. When testing for non-equality, it is more common to use != than ==.

Example

not a == b

Use instead:

a != b

References

• Python documentation: Comparisons