get-attr-with-constant (B009)

Derived from the flake8-bugbear linter.

Fix is always available.

What it does

Checks for uses of getattr that take a constant attribute value as an argument (e.g., getattr(obj, "foo")).

Why is this bad?

getattr is used to access attributes dynamically. If the attribute is defined as a constant, it is no safer than a typical property access. When possible, prefer property access over getattr calls, as the former is more concise and idiomatic.

Example

getattr(obj, "foo")

Use instead:

obj.foo

References

• Python documentation: getattr