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useless-expression (B018)#

Derived from the flake8-bugbear linter.

What it does#

Checks for useless expressions.

Why is this bad?#

Useless expressions have no effect on the program, and are often included by mistake. Assign a useless expression to a variable, or remove it entirely.

Example#

1 + 1

Use instead:

foo = 1 + 1