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bad-staticmethod-argument (PLW0211)

Added in 0.6.0 · Related issues · View source

Derived from the Pylint linter.

What it does

Checks for static methods that use self or cls as their first argument. This rule also applies to __new__ methods, which are implicitly static.

Why is this bad?

PEP 8 recommends the use of self and cls as the first arguments for instance methods and class methods, respectively. Naming the first argument of a static method as self or cls can be misleading, as static methods do not receive an instance or class reference as their first argument.

Example

class Wolf:  @staticmethod  def eat(self):  pass

Use instead:

class Wolf:  @staticmethod  def eat(sheep):  pass