It used to matter more back in Python 2, where the instance-ness of instance methods was enforced more strongly:
>>> class B:
... def f(x):
... print("x is", x)
...
>>> B.f(1)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
TypeError: unbound method f() must be called with B instance as first argument (
got int instance instead)
You had to mark static methods with @staticmethod
back then.
These days, @staticmethod
still makes it clearer that the method is static, which helps with code readability and documentation generation, and it lets you call the method on instances without the system trying to bind self
.
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