whitespace-before-parameters (E211)

Derived from the pycodestyle linter.

Fix is always available.

This rule is unstable and in preview. The --preview flag is required for use.

What it does

Checks for extraneous whitespace immediately preceding an open parenthesis or bracket.

Why is this bad?

According to PEP 8, open parentheses and brackets should not be preceded by any trailing whitespace.

Example

spam (1)

Use instead:

spam(1)