rspec/rules/S2325/python/rule.adoc
2021-02-02 16:54:43 +01:00

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Class methods that don't access instance data can and should be static because they yield more performant code.
To implement a static method in Python one should use either ``++@classmethod++`` or ``++@staticmethod++``. A class method receives the class as implicit first argument, just like an instance method receives the instance. A static method does not receive an implicit first argument.
== Noncompliant Code Example
----
class Utilities:
def do_the_thing(self, arg1, arg2, ...): # Noncompliant
#...
----
== Compliant Solution
----
class Utilities:
@classmethod
def do_the_thing(cls, arg1, arg2, ...):
#...
----
or
----
class Utilities:
@staticmethod
def do_the_thing(arg1, arg2, ...):
#...
----
== Exceptions
Methods which raise or may raise a ``++NotImplementedError++`` are ignored.