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builtin-lambda-argument-shadowing (A006)#

Derived from the flake8-builtins linter.

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

What it does#

Checks for lambda arguments that use the same names as Python builtins.

Why is this bad?#

Reusing a builtin name for the name of a lambda argument increases the difficulty of reading and maintaining the code, and can cause non-obvious errors, as readers may mistake the variable for the builtin and vice versa.

Builtins can be marked as exceptions to this rule via the lint.flake8-builtins.builtins-ignorelist configuration option.

Options#