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set-attr-with-constant (B010)

Added in v0.0.111 · Related issues · View source

Derived from the flake8-bugbear linter.

Fix is always available.

What it does

Checks for uses of setattr that take a constant attribute value as an argument (e.g., setattr(obj, "foo", 42)).

Why is this bad?

setattr is used to set 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 setattr calls, as the former is more concise and idiomatic.

Example

setattr(obj, "foo", 42)

Use instead:

obj.foo = 42

References